Home / 86,257.12-129,346-44,733.28

Finding the Fourth Proportional to 86,257.12, 129,346 and 44,733.28

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Solution

The fourth proportional to 86,257.12, 129,346 and 44,733.28 is: 67,079.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,257.12 : 129,346 = 44,733.28 : x
  2. Step 2: Convert to fraction form
    86,257.12/129,346 = 44,733.28/x
  3. Step 3: Cross multiply
    86,257.12x = 129,346 × 44,733.28
  4. Step 4: Simplify right side
    86,257.12x = 5,786,070,834.88
  5. Step 5: Solve for x
    x = 5,786,070,834.88/86,257.12
  6. Step 6: Final answer
    x = 67,079.34

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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.