Home / 86,218.52-129,342.36-39,475.04

Finding the Fourth Proportional to 86,218.52, 129,342.36 and 39,475.04

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Solution

The fourth proportional to 86,218.52, 129,342.36 and 39,475.04 is: 59,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,218.52 : 129,342.36 = 39,475.04 : x
  2. Step 2: Convert to fraction form
    86,218.52/129,342.36 = 39,475.04/x
  3. Step 3: Cross multiply
    86,218.52x = 129,342.36 × 39,475.04
  4. Step 4: Simplify right side
    86,218.52x = 5,105,794,834.69
  5. Step 5: Solve for x
    x = 5,105,794,834.69/86,218.52
  6. Step 6: Final answer
    x = 59,219.24

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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.