Home / 56,836.71-78,432.86-31,344.15

Finding the Fourth Proportional to 56,836.71, 78,432.86 and 31,344.15

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Solution

The fourth proportional to 56,836.71, 78,432.86 and 31,344.15 is: 43,253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,836.71 : 78,432.86 = 31,344.15 : x
  2. Step 2: Convert to fraction form
    56,836.71/78,432.86 = 31,344.15/x
  3. Step 3: Cross multiply
    56,836.71x = 78,432.86 × 31,344.15
  4. Step 4: Simplify right side
    56,836.71x = 2,458,411,172.05
  5. Step 5: Solve for x
    x = 2,458,411,172.05/56,836.71
  6. Step 6: Final answer
    x = 43,253.93

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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.