Home / 66,712.38-92,138.67-45,454.74

Finding the Fourth Proportional to 66,712.38, 92,138.67 and 45,454.74

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Solution

The fourth proportional to 66,712.38, 92,138.67 and 45,454.74 is: 62,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.38 : 92,138.67 = 45,454.74 : x
  2. Step 2: Convert to fraction form
    66,712.38/92,138.67 = 45,454.74/x
  3. Step 3: Cross multiply
    66,712.38x = 92,138.67 × 45,454.74
  4. Step 4: Simplify right side
    66,712.38x = 4,188,139,288.80
  5. Step 5: Solve for x
    x = 4,188,139,288.80/66,712.38
  6. Step 6: Final answer
    x = 62,779.04

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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.