Home / 52,440.66-78,729.59-31,132.28

Finding the Fourth Proportional to 52,440.66, 78,729.59 and 31,132.28

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Solution

The fourth proportional to 52,440.66, 78,729.59 and 31,132.28 is: 46,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,440.66 : 78,729.59 = 31,132.28 : x
  2. Step 2: Convert to fraction form
    52,440.66/78,729.59 = 31,132.28/x
  3. Step 3: Cross multiply
    52,440.66x = 78,729.59 × 31,132.28
  4. Step 4: Simplify right side
    52,440.66x = 2,451,031,640.17
  5. Step 5: Solve for x
    x = 2,451,031,640.17/52,440.66
  6. Step 6: Final answer
    x = 46,739.15

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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.