Home / 98,480.24-147,720.60-39,320.72

Finding the Fourth Proportional to 98,480.24, 147,720.60 and 39,320.72

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Solution

The fourth proportional to 98,480.24, 147,720.60 and 39,320.72 is: 58,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,480.24 : 147,720.60 = 39,320.72 : x
  2. Step 2: Convert to fraction form
    98,480.24/147,720.60 = 39,320.72/x
  3. Step 3: Cross multiply
    98,480.24x = 147,720.60 × 39,320.72
  4. Step 4: Simplify right side
    98,480.24x = 5,808,480,350.83
  5. Step 5: Solve for x
    x = 5,808,480,350.83/98,480.24
  6. Step 6: Final answer
    x = 58,981.18

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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.