Home / 85,080.18-127,638.72-25,914.30

Finding the Fourth Proportional to 85,080.18, 127,638.72 and 25,914.30

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Solution

The fourth proportional to 85,080.18, 127,638.72 and 25,914.30 is: 38,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,080.18 : 127,638.72 = 25,914.30 : x
  2. Step 2: Convert to fraction form
    85,080.18/127,638.72 = 25,914.30/x
  3. Step 3: Cross multiply
    85,080.18x = 127,638.72 × 25,914.30
  4. Step 4: Simplify right side
    85,080.18x = 3,307,668,081.70
  5. Step 5: Solve for x
    x = 3,307,668,081.70/85,080.18
  6. Step 6: Final answer
    x = 38,877.07

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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.