Home / 66,026.40-91,098.85-39,146.55

Finding the Fourth Proportional to 66,026.40, 91,098.85 and 39,146.55

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Solution

The fourth proportional to 66,026.40, 91,098.85 and 39,146.55 is: 54,011.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,026.40 : 91,098.85 = 39,146.55 : x
  2. Step 2: Convert to fraction form
    66,026.40/91,098.85 = 39,146.55/x
  3. Step 3: Cross multiply
    66,026.40x = 91,098.85 × 39,146.55
  4. Step 4: Simplify right side
    66,026.40x = 3,566,205,686.47
  5. Step 5: Solve for x
    x = 3,566,205,686.47/66,026.40
  6. Step 6: Final answer
    x = 54,011.81

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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.