Home / 83,561.17-115,307.18-49,102.25

Finding the Fourth Proportional to 83,561.17, 115,307.18 and 49,102.25

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Solution

The fourth proportional to 83,561.17, 115,307.18 and 49,102.25 is: 67,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,561.17 : 115,307.18 = 49,102.25 : x
  2. Step 2: Convert to fraction form
    83,561.17/115,307.18 = 49,102.25/x
  3. Step 3: Cross multiply
    83,561.17x = 115,307.18 × 49,102.25
  4. Step 4: Simplify right side
    83,561.17x = 5,661,841,157.11
  5. Step 5: Solve for x
    x = 5,661,841,157.11/83,561.17
  6. Step 6: Final answer
    x = 67,756.85

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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.