Home / 77,712.29-116,568.45-21,566.55

Finding the Fourth Proportional to 77,712.29, 116,568.45 and 21,566.55

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Solution

The fourth proportional to 77,712.29, 116,568.45 and 21,566.55 is: 32,349.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,712.29 : 116,568.45 = 21,566.55 : x
  2. Step 2: Convert to fraction form
    77,712.29/116,568.45 = 21,566.55/x
  3. Step 3: Cross multiply
    77,712.29x = 116,568.45 × 21,566.55
  4. Step 4: Simplify right side
    77,712.29x = 2,513,979,305.35
  5. Step 5: Solve for x
    x = 2,513,979,305.35/77,712.29
  6. Step 6: Final answer
    x = 32,349.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.