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Finding the Fourth Proportional to 98,476.80, 147,715.20 and 32,812.80

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Solution

The fourth proportional to 98,476.80, 147,715.20 and 32,812.80 is: 49,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,476.80 : 147,715.20 = 32,812.80 : x
  2. Step 2: Convert to fraction form
    98,476.80/147,715.20 = 32,812.80/x
  3. Step 3: Cross multiply
    98,476.80x = 147,715.20 × 32,812.80
  4. Step 4: Simplify right side
    98,476.80x = 4,846,949,314.56
  5. Step 5: Solve for x
    x = 4,846,949,314.56/98,476.80
  6. Step 6: Final answer
    x = 49,219.20

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1.5x scale

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.