Home / 47,543.92-65,640.48-30,555.76

Finding the Fourth Proportional to 47,543.92, 65,640.48 and 30,555.76

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Solution

The fourth proportional to 47,543.92, 65,640.48 and 30,555.76 is: 42,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,543.92 : 65,640.48 = 30,555.76 : x
  2. Step 2: Convert to fraction form
    47,543.92/65,640.48 = 30,555.76/x
  3. Step 3: Cross multiply
    47,543.92x = 65,640.48 × 30,555.76
  4. Step 4: Simplify right side
    47,543.92x = 2,005,694,753.16
  5. Step 5: Solve for x
    x = 2,005,694,753.16/47,543.92
  6. Step 6: Final answer
    x = 42,186.15

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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.