Home / 66,444.30-91,701.32-38,149.38

Finding the Fourth Proportional to 66,444.30, 91,701.32 and 38,149.38

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Solution

The fourth proportional to 66,444.30, 91,701.32 and 38,149.38 is: 52,650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,444.30 : 91,701.32 = 38,149.38 : x
  2. Step 2: Convert to fraction form
    66,444.30/91,701.32 = 38,149.38/x
  3. Step 3: Cross multiply
    66,444.30x = 91,701.32 × 38,149.38
  4. Step 4: Simplify right side
    66,444.30x = 3,498,348,312.43
  5. Step 5: Solve for x
    x = 3,498,348,312.43/66,444.30
  6. Step 6: Final answer
    x = 52,650.84

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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.