Home / 42,124.92-63,187.42-12,543.16

Finding the Fourth Proportional to 42,124.92, 63,187.42 and 12,543.16

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Solution

The fourth proportional to 42,124.92, 63,187.42 and 12,543.16 is: 18,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,124.92 : 63,187.42 = 12,543.16 : x
  2. Step 2: Convert to fraction form
    42,124.92/63,187.42 = 12,543.16/x
  3. Step 3: Cross multiply
    42,124.92x = 63,187.42 × 12,543.16
  4. Step 4: Simplify right side
    42,124.92x = 792,569,919.05
  5. Step 5: Solve for x
    x = 792,569,919.05/42,124.92
  6. Step 6: Final answer
    x = 18,814.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.