Home / 39,760.74-59,642.93-28,125.90

Finding the Fourth Proportional to 39,760.74, 59,642.93 and 28,125.90

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Solution

The fourth proportional to 39,760.74, 59,642.93 and 28,125.90 is: 42,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,760.74 : 59,642.93 = 28,125.90 : x
  2. Step 2: Convert to fraction form
    39,760.74/59,642.93 = 28,125.90/x
  3. Step 3: Cross multiply
    39,760.74x = 59,642.93 × 28,125.90
  4. Step 4: Simplify right side
    39,760.74x = 1,677,511,155.20
  5. Step 5: Solve for x
    x = 1,677,511,155.20/39,760.74
  6. Step 6: Final answer
    x = 42,190.14

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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.