Home / 86,723.10-130,158.72-61,824.06

Finding the Fourth Proportional to 86,723.10, 130,158.72 and 61,824.06

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Solution

The fourth proportional to 86,723.10, 130,158.72 and 61,824.06 is: 92,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,723.10 : 130,158.72 = 61,824.06 : x
  2. Step 2: Convert to fraction form
    86,723.10/130,158.72 = 61,824.06/x
  3. Step 3: Cross multiply
    86,723.10x = 130,158.72 × 61,824.06
  4. Step 4: Simplify right side
    86,723.10x = 8,046,940,514.80
  5. Step 5: Solve for x
    x = 8,046,940,514.80/86,723.10
  6. Step 6: Final answer
    x = 92,788.89

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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.