Home / 56,715.32-78,266.51-31,221.14

Finding the Fourth Proportional to 56,715.32, 78,266.51 and 31,221.14

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Solution

The fourth proportional to 56,715.32, 78,266.51 and 31,221.14 is: 43,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.32 : 78,266.51 = 31,221.14 : x
  2. Step 2: Convert to fraction form
    56,715.32/78,266.51 = 31,221.14/x
  3. Step 3: Cross multiply
    56,715.32x = 78,266.51 × 31,221.14
  4. Step 4: Simplify right side
    56,715.32x = 2,443,569,822.66
  5. Step 5: Solve for x
    x = 2,443,569,822.66/56,715.32
  6. Step 6: Final answer
    x = 43,084.83

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1.5x scale

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.