Home / 86,819.17-130,139.95-58,742.19

Finding the Fourth Proportional to 86,819.17, 130,139.95 and 58,742.19

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Solution

The fourth proportional to 86,819.17, 130,139.95 and 58,742.19 is: 88,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,819.17 : 130,139.95 = 58,742.19 : x
  2. Step 2: Convert to fraction form
    86,819.17/130,139.95 = 58,742.19/x
  3. Step 3: Cross multiply
    86,819.17x = 130,139.95 × 58,742.19
  4. Step 4: Simplify right side
    86,819.17x = 7,644,705,514.58
  5. Step 5: Solve for x
    x = 7,644,705,514.58/86,819.17
  6. Step 6: Final answer
    x = 88,053.20

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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.