Home / 75,427.95-113,189.64-42,169.83

Finding the Fourth Proportional to 75,427.95, 113,189.64 and 42,169.83

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Solution

The fourth proportional to 75,427.95, 113,189.64 and 42,169.83 is: 63,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.95 : 113,189.64 = 42,169.83 : x
  2. Step 2: Convert to fraction form
    75,427.95/113,189.64 = 42,169.83/x
  3. Step 3: Cross multiply
    75,427.95x = 113,189.64 × 42,169.83
  4. Step 4: Simplify right side
    75,427.95x = 4,773,187,876.56
  5. Step 5: Solve for x
    x = 4,773,187,876.56/75,427.95
  6. Step 6: Final answer
    x = 63,281.42

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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.