Home / 67,931.40-101,901.60-18,010.80

Finding the Fourth Proportional to 67,931.40, 101,901.60 and 18,010.80

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Solution

The fourth proportional to 67,931.40, 101,901.60 and 18,010.80 is: 27,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,931.40 : 101,901.60 = 18,010.80 : x
  2. Step 2: Convert to fraction form
    67,931.40/101,901.60 = 18,010.80/x
  3. Step 3: Cross multiply
    67,931.40x = 101,901.60 × 18,010.80
  4. Step 4: Simplify right side
    67,931.40x = 1,835,329,337.28
  5. Step 5: Solve for x
    x = 1,835,329,337.28/67,931.40
  6. Step 6: Final answer
    x = 27,017.39

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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.