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Finding the Fourth Proportional to 85,244.60, 127,866.90 and 26,080.40

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Solution

The fourth proportional to 85,244.60, 127,866.90 and 26,080.40 is: 39,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,244.60 : 127,866.90 = 26,080.40 : x
  2. Step 2: Convert to fraction form
    85,244.60/127,866.90 = 26,080.40/x
  3. Step 3: Cross multiply
    85,244.60x = 127,866.90 × 26,080.40
  4. Step 4: Simplify right side
    85,244.60x = 3,334,819,898.76
  5. Step 5: Solve for x
    x = 3,334,819,898.76/85,244.60
  6. Step 6: Final answer
    x = 39,120.60

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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.