Home / 56,310.75-77,711.27-31,160.25

Finding the Fourth Proportional to 56,310.75, 77,711.27 and 31,160.25

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Solution

The fourth proportional to 56,310.75, 77,711.27 and 31,160.25 is: 43,002.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,310.75 : 77,711.27 = 31,160.25 : x
  2. Step 2: Convert to fraction form
    56,310.75/77,711.27 = 31,160.25/x
  3. Step 3: Cross multiply
    56,310.75x = 77,711.27 × 31,160.25
  4. Step 4: Simplify right side
    56,310.75x = 2,421,502,445.22
  5. Step 5: Solve for x
    x = 2,421,502,445.22/56,310.75
  6. Step 6: Final answer
    x = 43,002.49

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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.