Home / 81,769,505.28-112,837,930.92-48,728,998.32

Finding the Fourth Proportional to 81,769,505.28, 112,837,930.92 and 48,728,998.32

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Solution

The fourth proportional to 81,769,505.28, 112,837,930.92 and 48,728,998.32 is: 67,243,642.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,769,505.28 : 112,837,930.92 = 48,728,998.32 : x
  2. Step 2: Convert to fraction form
    81,769,505.28/112,837,930.92 = 48,728,998.32/x
  3. Step 3: Cross multiply
    81,769,505.28x = 112,837,930.92 × 48,728,998.32
  4. Step 4: Simplify right side
    81,769,505.28x = 5,498,479,346,232,956
  5. Step 5: Solve for x
    x = 5,498,479,346,232,956/81,769,505.28
  6. Step 6: Final answer
    x = 67,243,642.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.