Home / 98,393.49-147,591.09-28,272.78

Finding the Fourth Proportional to 98,393.49, 147,591.09 and 28,272.78

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Solution

The fourth proportional to 98,393.49, 147,591.09 and 28,272.78 is: 42,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,393.49 : 147,591.09 = 28,272.78 : x
  2. Step 2: Convert to fraction form
    98,393.49/147,591.09 = 28,272.78/x
  3. Step 3: Cross multiply
    98,393.49x = 147,591.09 × 28,272.78
  4. Step 4: Simplify right side
    98,393.49x = 4,172,810,417.53
  5. Step 5: Solve for x
    x = 4,172,810,417.53/98,393.49
  6. Step 6: Final answer
    x = 42,409.42

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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.