Home / 98,479.24-147,719.10-39,319.72

Finding the Fourth Proportional to 98,479.24, 147,719.10 and 39,319.72

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Solution

The fourth proportional to 98,479.24, 147,719.10 and 39,319.72 is: 58,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,479.24 : 147,719.10 = 39,319.72 : x
  2. Step 2: Convert to fraction form
    98,479.24/147,719.10 = 39,319.72/x
  3. Step 3: Cross multiply
    98,479.24x = 147,719.10 × 39,319.72
  4. Step 4: Simplify right side
    98,479.24x = 5,808,273,650.65
  5. Step 5: Solve for x
    x = 5,808,273,650.65/98,479.24
  6. Step 6: Final answer
    x = 58,979.68

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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.