Home / 89,943.12-124,102.20-52,197.12

Finding the Fourth Proportional to 89,943.12, 124,102.20 and 52,197.12

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Solution

The fourth proportional to 89,943.12, 124,102.20 and 52,197.12 is: 72,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,943.12 : 124,102.20 = 52,197.12 : x
  2. Step 2: Convert to fraction form
    89,943.12/124,102.20 = 52,197.12/x
  3. Step 3: Cross multiply
    89,943.12x = 124,102.20 × 52,197.12
  4. Step 4: Simplify right side
    89,943.12x = 6,477,777,425.66
  5. Step 5: Solve for x
    x = 6,477,777,425.66/89,943.12
  6. Step 6: Final answer
    x = 72,020.82

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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.