Home / 86,111.20-129,097.60-48,648.16

Finding the Fourth Proportional to 86,111.20, 129,097.60 and 48,648.16

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Solution

The fourth proportional to 86,111.20, 129,097.60 and 48,648.16 is: 72,933.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,111.20 : 129,097.60 = 48,648.16 : x
  2. Step 2: Convert to fraction form
    86,111.20/129,097.60 = 48,648.16/x
  3. Step 3: Cross multiply
    86,111.20x = 129,097.60 × 48,648.16
  4. Step 4: Simplify right side
    86,111.20x = 6,280,360,700.42
  5. Step 5: Solve for x
    x = 6,280,360,700.42/86,111.20
  6. Step 6: Final answer
    x = 72,933.15

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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.