Home / 66,780.47-92,157.02-36,565.78

Finding the Fourth Proportional to 66,780.47, 92,157.02 and 36,565.78

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Solution

The fourth proportional to 66,780.47, 92,157.02 and 36,565.78 is: 50,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,780.47 : 92,157.02 = 36,565.78 : x
  2. Step 2: Convert to fraction form
    66,780.47/92,157.02 = 36,565.78/x
  3. Step 3: Cross multiply
    66,780.47x = 92,157.02 × 36,565.78
  4. Step 4: Simplify right side
    66,780.47x = 3,369,793,318.78
  5. Step 5: Solve for x
    x = 3,369,793,318.78/66,780.47
  6. Step 6: Final answer
    x = 50,460.76

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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.