Home / 86,863.20-130,197.60-49,441.20

Finding the Fourth Proportional to 86,863.20, 130,197.60 and 49,441.20

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Solution

The fourth proportional to 86,863.20, 130,197.60 and 49,441.20 is: 74,106.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.20 : 130,197.60 = 49,441.20 : x
  2. Step 2: Convert to fraction form
    86,863.20/130,197.60 = 49,441.20/x
  3. Step 3: Cross multiply
    86,863.20x = 130,197.60 × 49,441.20
  4. Step 4: Simplify right side
    86,863.20x = 6,437,125,581.12
  5. Step 5: Solve for x
    x = 6,437,125,581.12/86,863.20
  6. Step 6: Final answer
    x = 74,106.48

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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.