Home / 42,000.80-62,855.40-38,501.60

Finding the Fourth Proportional to 42,000.80, 62,855.40 and 38,501.60

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Solution

The fourth proportional to 42,000.80, 62,855.40 and 38,501.60 is: 57,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,000.80 : 62,855.40 = 38,501.60 : x
  2. Step 2: Convert to fraction form
    42,000.80/62,855.40 = 38,501.60/x
  3. Step 3: Cross multiply
    42,000.80x = 62,855.40 × 38,501.60
  4. Step 4: Simplify right side
    42,000.80x = 2,420,033,468.64
  5. Step 5: Solve for x
    x = 2,420,033,468.64/42,000.80
  6. Step 6: Final answer
    x = 57,618.75

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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.