Home / 75,427.52-113,188.91-42,169.40

Finding the Fourth Proportional to 75,427.52, 113,188.91 and 42,169.40

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Solution

The fourth proportional to 75,427.52, 113,188.91 and 42,169.40 is: 63,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.52 : 113,188.91 = 42,169.40 : x
  2. Step 2: Convert to fraction form
    75,427.52/113,188.91 = 42,169.40/x
  3. Step 3: Cross multiply
    75,427.52x = 113,188.91 × 42,169.40
  4. Step 4: Simplify right side
    75,427.52x = 4,773,107,960.83
  5. Step 5: Solve for x
    x = 4,773,107,960.83/75,427.52
  6. Step 6: Final answer
    x = 63,280.73

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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.