Home / 42,112.39-63,117.85-15,436.80

Finding the Fourth Proportional to 42,112.39, 63,117.85 and 15,436.80

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Solution

The fourth proportional to 42,112.39, 63,117.85 and 15,436.80 is: 23,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,112.39 : 63,117.85 = 15,436.80 : x
  2. Step 2: Convert to fraction form
    42,112.39/63,117.85 = 15,436.80/x
  3. Step 3: Cross multiply
    42,112.39x = 63,117.85 × 15,436.80
  4. Step 4: Simplify right side
    42,112.39x = 974,337,729.63
  5. Step 5: Solve for x
    x = 974,337,729.63/42,112.39
  6. Step 6: Final answer
    x = 23,136.60

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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.