Home / 89,695.86-134,478.18-30,515.64

Finding the Fourth Proportional to 89,695.86, 134,478.18 and 30,515.64

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Solution

The fourth proportional to 89,695.86, 134,478.18 and 30,515.64 is: 45,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,695.86 : 134,478.18 = 30,515.64 : x
  2. Step 2: Convert to fraction form
    89,695.86/134,478.18 = 30,515.64/x
  3. Step 3: Cross multiply
    89,695.86x = 134,478.18 × 30,515.64
  4. Step 4: Simplify right side
    89,695.86x = 4,103,687,728.74
  5. Step 5: Solve for x
    x = 4,103,687,728.74/89,695.86
  6. Step 6: Final answer
    x = 45,751.14

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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.