Home / 61,082.61-91,206.15-54,716.42

Finding the Fourth Proportional to 61,082.61, 91,206.15 and 54,716.42

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Solution

The fourth proportional to 61,082.61, 91,206.15 and 54,716.42 is: 81,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,082.61 : 91,206.15 = 54,716.42 : x
  2. Step 2: Convert to fraction form
    61,082.61/91,206.15 = 54,716.42/x
  3. Step 3: Cross multiply
    61,082.61x = 91,206.15 × 54,716.42
  4. Step 4: Simplify right side
    61,082.61x = 4,990,473,759.14
  5. Step 5: Solve for x
    x = 4,990,473,759.14/61,082.61
  6. Step 6: Final answer
    x = 81,700.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.