Home / 91,569.15-126,352.17-51,284.61

Finding the Fourth Proportional to 91,569.15, 126,352.17 and 51,284.61

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Solution

The fourth proportional to 91,569.15, 126,352.17 and 51,284.61 is: 70,765.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,569.15 : 126,352.17 = 51,284.61 : x
  2. Step 2: Convert to fraction form
    91,569.15/126,352.17 = 51,284.61/x
  3. Step 3: Cross multiply
    91,569.15x = 126,352.17 × 51,284.61
  4. Step 4: Simplify right side
    91,569.15x = 6,479,921,761.10
  5. Step 5: Solve for x
    x = 6,479,921,761.10/91,569.15
  6. Step 6: Final answer
    x = 70,765.34

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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.