Home / 98,621.28-147,953.79-28,495.26

Finding the Fourth Proportional to 98,621.28, 147,953.79 and 28,495.26

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Solution

The fourth proportional to 98,621.28, 147,953.79 and 28,495.26 is: 42,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,621.28 : 147,953.79 = 28,495.26 : x
  2. Step 2: Convert to fraction form
    98,621.28/147,953.79 = 28,495.26/x
  3. Step 3: Cross multiply
    98,621.28x = 147,953.79 × 28,495.26
  4. Step 4: Simplify right side
    98,621.28x = 4,215,981,714.04
  5. Step 5: Solve for x
    x = 4,215,981,714.04/98,621.28
  6. Step 6: Final answer
    x = 42,749.21

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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.