Home / 66,780.18-92,125.35-38,469.47

Finding the Fourth Proportional to 66,780.18, 92,125.35 and 38,469.47

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Solution

The fourth proportional to 66,780.18, 92,125.35 and 38,469.47 is: 53,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,780.18 : 92,125.35 = 38,469.47 : x
  2. Step 2: Convert to fraction form
    66,780.18/92,125.35 = 38,469.47/x
  3. Step 3: Cross multiply
    66,780.18x = 92,125.35 × 38,469.47
  4. Step 4: Simplify right side
    66,780.18x = 3,544,012,927.44
  5. Step 5: Solve for x
    x = 3,544,012,927.44/66,780.18
  6. Step 6: Final answer
    x = 53,069.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.