Home / 75,119.64-103,665.20-43,287.72

Finding the Fourth Proportional to 75,119.64, 103,665.20 and 43,287.72

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Solution

The fourth proportional to 75,119.64, 103,665.20 and 43,287.72 is: 59,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,119.64 : 103,665.20 = 43,287.72 : x
  2. Step 2: Convert to fraction form
    75,119.64/103,665.20 = 43,287.72/x
  3. Step 3: Cross multiply
    75,119.64x = 103,665.20 × 43,287.72
  4. Step 4: Simplify right side
    75,119.64x = 4,487,429,934.91
  5. Step 5: Solve for x
    x = 4,487,429,934.91/75,119.64
  6. Step 6: Final answer
    x = 59,737.11

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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.