Home / 98,528.78-147,815.04-28,402.62

Finding the Fourth Proportional to 98,528.78, 147,815.04 and 28,402.62

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Solution

The fourth proportional to 98,528.78, 147,815.04 and 28,402.62 is: 42,610.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,528.78 : 147,815.04 = 28,402.62 : x
  2. Step 2: Convert to fraction form
    98,528.78/147,815.04 = 28,402.62/x
  3. Step 3: Cross multiply
    98,528.78x = 147,815.04 × 28,402.62
  4. Step 4: Simplify right side
    98,528.78x = 4,198,334,411.40
  5. Step 5: Solve for x
    x = 4,198,334,411.40/98,528.78
  6. Step 6: Final answer
    x = 42,610.23

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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.