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Finding the Fourth Proportional to 85,294.40, 127,941.60 and 29,883.20

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Solution

The fourth proportional to 85,294.40, 127,941.60 and 29,883.20 is: 44,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,294.40 : 127,941.60 = 29,883.20 : x
  2. Step 2: Convert to fraction form
    85,294.40/127,941.60 = 29,883.20/x
  3. Step 3: Cross multiply
    85,294.40x = 127,941.60 × 29,883.20
  4. Step 4: Simplify right side
    85,294.40x = 3,823,304,421.12
  5. Step 5: Solve for x
    x = 3,823,304,421.12/85,294.40
  6. Step 6: Final answer
    x = 44,824.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.