Home / 99,276.88-137,005.40-58,433.61

Finding the Fourth Proportional to 99,276.88, 137,005.40 and 58,433.61

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Solution

The fourth proportional to 99,276.88, 137,005.40 and 58,433.61 is: 80,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,276.88 : 137,005.40 = 58,433.61 : x
  2. Step 2: Convert to fraction form
    99,276.88/137,005.40 = 58,433.61/x
  3. Step 3: Cross multiply
    99,276.88x = 137,005.40 × 58,433.61
  4. Step 4: Simplify right side
    99,276.88x = 8,005,719,915.06
  5. Step 5: Solve for x
    x = 8,005,719,915.06/99,276.88
  6. Step 6: Final answer
    x = 80,640.33

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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.