Home / 61,643.10-85,069.89-36,145.92

Finding the Fourth Proportional to 61,643.10, 85,069.89 and 36,145.92

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Solution

The fourth proportional to 61,643.10, 85,069.89 and 36,145.92 is: 49,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,643.10 : 85,069.89 = 36,145.92 : x
  2. Step 2: Convert to fraction form
    61,643.10/85,069.89 = 36,145.92/x
  3. Step 3: Cross multiply
    61,643.10x = 85,069.89 × 36,145.92
  4. Step 4: Simplify right side
    61,643.10x = 3,074,929,438.35
  5. Step 5: Solve for x
    x = 3,074,929,438.35/61,643.10
  6. Step 6: Final answer
    x = 49,882.78

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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.