Home / 42,124.10-63,199.80-12,542.18

Finding the Fourth Proportional to 42,124.10, 63,199.80 and 12,542.18

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Solution

The fourth proportional to 42,124.10, 63,199.80 and 12,542.18 is: 18,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,124.10 : 63,199.80 = 12,542.18 : x
  2. Step 2: Convert to fraction form
    42,124.10/63,199.80 = 12,542.18/x
  3. Step 3: Cross multiply
    42,124.10x = 63,199.80 × 12,542.18
  4. Step 4: Simplify right side
    42,124.10x = 792,662,951.57
  5. Step 5: Solve for x
    x = 792,662,951.57/42,124.10
  6. Step 6: Final answer
    x = 18,817.33

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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.