Home / 42,136.70-63,099.35-38,142.39

Finding the Fourth Proportional to 42,136.70, 63,099.35 and 38,142.39

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Solution

The fourth proportional to 42,136.70, 63,099.35 and 38,142.39 is: 57,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,136.70 : 63,099.35 = 38,142.39 : x
  2. Step 2: Convert to fraction form
    42,136.70/63,099.35 = 38,142.39/x
  3. Step 3: Cross multiply
    42,136.70x = 63,099.35 × 38,142.39
  4. Step 4: Simplify right side
    42,136.70x = 2,406,759,825.73
  5. Step 5: Solve for x
    x = 2,406,759,825.73/42,136.70
  6. Step 6: Final answer
    x = 57,117.90

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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.