Home / 86,239.14-129,358.71-23,909.64

Finding the Fourth Proportional to 86,239.14, 129,358.71 and 23,909.64

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Solution

The fourth proportional to 86,239.14, 129,358.71 and 23,909.64 is: 35,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,239.14 : 129,358.71 = 23,909.64 : x
  2. Step 2: Convert to fraction form
    86,239.14/129,358.71 = 23,909.64/x
  3. Step 3: Cross multiply
    86,239.14x = 129,358.71 × 23,909.64
  4. Step 4: Simplify right side
    86,239.14x = 3,092,920,186.96
  5. Step 5: Solve for x
    x = 3,092,920,186.96/86,239.14
  6. Step 6: Final answer
    x = 35,864.46

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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.