Home / 342,457.20-513,708.28-89,743.88

Finding the Fourth Proportional to 342,457.20, 513,708.28 and 89,743.88

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Solution

The fourth proportional to 342,457.20, 513,708.28 and 89,743.88 is: 134,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,457.20 : 513,708.28 = 89,743.88 : x
  2. Step 2: Convert to fraction form
    342,457.20/513,708.28 = 89,743.88/x
  3. Step 3: Cross multiply
    342,457.20x = 513,708.28 × 89,743.88
  4. Step 4: Simplify right side
    342,457.20x = 46,102,175,295.24
  5. Step 5: Solve for x
    x = 46,102,175,295.24/342,457.20
  6. Step 6: Final answer
    x = 134,621.71

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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.