Home / 56,920.92-78,555.18-31,432.14

Finding the Fourth Proportional to 56,920.92, 78,555.18 and 31,432.14

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Solution

The fourth proportional to 56,920.92, 78,555.18 and 31,432.14 is: 43,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.92 : 78,555.18 = 31,432.14 : x
  2. Step 2: Convert to fraction form
    56,920.92/78,555.18 = 31,432.14/x
  3. Step 3: Cross multiply
    56,920.92x = 78,555.18 × 31,432.14
  4. Step 4: Simplify right side
    56,920.92x = 2,469,157,415.49
  5. Step 5: Solve for x
    x = 2,469,157,415.49/56,920.92
  6. Step 6: Final answer
    x = 43,378.73

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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.