Home / 56,367.90-77,787.54-31,217.40

Finding the Fourth Proportional to 56,367.90, 77,787.54 and 31,217.40

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Solution

The fourth proportional to 56,367.90, 77,787.54 and 31,217.40 is: 43,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,367.90 : 77,787.54 = 31,217.40 : x
  2. Step 2: Convert to fraction form
    56,367.90/77,787.54 = 31,217.40/x
  3. Step 3: Cross multiply
    56,367.90x = 77,787.54 × 31,217.40
  4. Step 4: Simplify right side
    56,367.90x = 2,428,324,751.20
  5. Step 5: Solve for x
    x = 2,428,324,751.20/56,367.90
  6. Step 6: Final answer
    x = 43,079.92

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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.