Home / 81,006.96-111,943.92-58,420.08

Finding the Fourth Proportional to 81,006.96, 111,943.92 and 58,420.08

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Solution

The fourth proportional to 81,006.96, 111,943.92 and 58,420.08 is: 80,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.96 : 111,943.92 = 58,420.08 : x
  2. Step 2: Convert to fraction form
    81,006.96/111,943.92 = 58,420.08/x
  3. Step 3: Cross multiply
    81,006.96x = 111,943.92 × 58,420.08
  4. Step 4: Simplify right side
    81,006.96x = 6,539,772,761.91
  5. Step 5: Solve for x
    x = 6,539,772,761.91/81,006.96
  6. Step 6: Final answer
    x = 80,731.00

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1.5x scale

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.