Home / 66,408.90-91,677.50-42,234.18

Finding the Fourth Proportional to 66,408.90, 91,677.50 and 42,234.18

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Solution

The fourth proportional to 66,408.90, 91,677.50 and 42,234.18 is: 58,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,408.90 : 91,677.50 = 42,234.18 : x
  2. Step 2: Convert to fraction form
    66,408.90/91,677.50 = 42,234.18/x
  3. Step 3: Cross multiply
    66,408.90x = 91,677.50 × 42,234.18
  4. Step 4: Simplify right side
    66,408.90x = 3,871,924,036.95
  5. Step 5: Solve for x
    x = 3,871,924,036.95/66,408.90
  6. Step 6: Final answer
    x = 58,304.29

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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.