Home / 85,982.78-129,000.06-26,824.70

Finding the Fourth Proportional to 85,982.78, 129,000.06 and 26,824.70

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Solution

The fourth proportional to 85,982.78, 129,000.06 and 26,824.70 is: 40,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,982.78 : 129,000.06 = 26,824.70 : x
  2. Step 2: Convert to fraction form
    85,982.78/129,000.06 = 26,824.70/x
  3. Step 3: Cross multiply
    85,982.78x = 129,000.06 × 26,824.70
  4. Step 4: Simplify right side
    85,982.78x = 3,460,387,909.48
  5. Step 5: Solve for x
    x = 3,460,387,909.48/85,982.78
  6. Step 6: Final answer
    x = 40,245.13

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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.