Home / 86,031.75-129,022.99-36,123.06

Finding the Fourth Proportional to 86,031.75, 129,022.99 and 36,123.06

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Solution

The fourth proportional to 86,031.75, 129,022.99 and 36,123.06 is: 54,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031.75 : 129,022.99 = 36,123.06 : x
  2. Step 2: Convert to fraction form
    86,031.75/129,022.99 = 36,123.06/x
  3. Step 3: Cross multiply
    86,031.75x = 129,022.99 × 36,123.06
  4. Step 4: Simplify right side
    86,031.75x = 4,660,705,209.15
  5. Step 5: Solve for x
    x = 4,660,705,209.15/86,031.75
  6. Step 6: Final answer
    x = 54,174.25

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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.