Home / 85,011.75-127,522.89-25,851.78

Finding the Fourth Proportional to 85,011.75, 127,522.89 and 25,851.78

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Solution

The fourth proportional to 85,011.75, 127,522.89 and 25,851.78 is: 38,779.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011.75 : 127,522.89 = 25,851.78 : x
  2. Step 2: Convert to fraction form
    85,011.75/127,522.89 = 25,851.78/x
  3. Step 3: Cross multiply
    85,011.75x = 127,522.89 × 25,851.78
  4. Step 4: Simplify right side
    85,011.75x = 3,296,693,697.24
  5. Step 5: Solve for x
    x = 3,296,693,697.24/85,011.75
  6. Step 6: Final answer
    x = 38,779.27

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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.