Home / 56,438.29-77,884.95-31,287.79

Finding the Fourth Proportional to 56,438.29, 77,884.95 and 31,287.79

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Solution

The fourth proportional to 56,438.29, 77,884.95 and 31,287.79 is: 43,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,438.29 : 77,884.95 = 31,287.79 : x
  2. Step 2: Convert to fraction form
    56,438.29/77,884.95 = 31,287.79/x
  3. Step 3: Cross multiply
    56,438.29x = 77,884.95 × 31,287.79
  4. Step 4: Simplify right side
    56,438.29x = 2,436,847,959.76
  5. Step 5: Solve for x
    x = 2,436,847,959.76/56,438.29
  6. Step 6: Final answer
    x = 43,177.21

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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.