Home / 75,214.72-103,807.20-43,377.28

Finding the Fourth Proportional to 75,214.72, 103,807.20 and 43,377.28

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Solution

The fourth proportional to 75,214.72, 103,807.20 and 43,377.28 is: 59,866.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,214.72 : 103,807.20 = 43,377.28 : x
  2. Step 2: Convert to fraction form
    75,214.72/103,807.20 = 43,377.28/x
  3. Step 3: Cross multiply
    75,214.72x = 103,807.20 × 43,377.28
  4. Step 4: Simplify right side
    75,214.72x = 4,502,873,980.42
  5. Step 5: Solve for x
    x = 4,502,873,980.42/75,214.72
  6. Step 6: Final answer
    x = 59,866.92

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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.