Home / 67,430.97-101,137.82-20,679.93

Finding the Fourth Proportional to 67,430.97, 101,137.82 and 20,679.93

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Solution

The fourth proportional to 67,430.97, 101,137.82 and 20,679.93 is: 31,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,430.97 : 101,137.82 = 20,679.93 : x
  2. Step 2: Convert to fraction form
    67,430.97/101,137.82 = 20,679.93/x
  3. Step 3: Cross multiply
    67,430.97x = 101,137.82 × 20,679.93
  4. Step 4: Simplify right side
    67,430.97x = 2,091,522,934.55
  5. Step 5: Solve for x
    x = 2,091,522,934.55/67,430.97
  6. Step 6: Final answer
    x = 31,017.25

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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.