Home / 67,421.86-101,147.19-25,868.50

Finding the Fourth Proportional to 67,421.86, 101,147.19 and 25,868.50

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Solution

The fourth proportional to 67,421.86, 101,147.19 and 25,868.50 is: 38,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,421.86 : 101,147.19 = 25,868.50 : x
  2. Step 2: Convert to fraction form
    67,421.86/101,147.19 = 25,868.50/x
  3. Step 3: Cross multiply
    67,421.86x = 101,147.19 × 25,868.50
  4. Step 4: Simplify right side
    67,421.86x = 2,616,526,084.52
  5. Step 5: Solve for x
    x = 2,616,526,084.52/67,421.86
  6. Step 6: Final answer
    x = 38,808.28

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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.