Home / 66,061.32-91,130.72-41,821.17

Finding the Fourth Proportional to 66,061.32, 91,130.72 and 41,821.17

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Solution

The fourth proportional to 66,061.32, 91,130.72 and 41,821.17 is: 57,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,061.32 : 91,130.72 = 41,821.17 : x
  2. Step 2: Convert to fraction form
    66,061.32/91,130.72 = 41,821.17/x
  3. Step 3: Cross multiply
    66,061.32x = 91,130.72 × 41,821.17
  4. Step 4: Simplify right side
    66,061.32x = 3,811,193,124.24
  5. Step 5: Solve for x
    x = 3,811,193,124.24/66,061.32
  6. Step 6: Final answer
    x = 57,691.75

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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.