Home / 66,881.03-92,220.23-42,649.61

Finding the Fourth Proportional to 66,881.03, 92,220.23 and 42,649.61

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Solution

The fourth proportional to 66,881.03, 92,220.23 and 42,649.61 is: 58,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.03 : 92,220.23 = 42,649.61 : x
  2. Step 2: Convert to fraction form
    66,881.03/92,220.23 = 42,649.61/x
  3. Step 3: Cross multiply
    66,881.03x = 92,220.23 × 42,649.61
  4. Step 4: Simplify right side
    66,881.03x = 3,933,156,489.13
  5. Step 5: Solve for x
    x = 3,933,156,489.13/66,881.03
  6. Step 6: Final answer
    x = 58,808.26

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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.