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Finding the Fourth Proportional to 98,490.41, 147,714.01 and 28,354.49

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Solution

The fourth proportional to 98,490.41, 147,714.01 and 28,354.49 is: 42,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490.41 : 147,714.01 = 28,354.49 : x
  2. Step 2: Convert to fraction form
    98,490.41/147,714.01 = 28,354.49/x
  3. Step 3: Cross multiply
    98,490.41x = 147,714.01 × 28,354.49
  4. Step 4: Simplify right side
    98,490.41x = 4,188,355,050.12
  5. Step 5: Solve for x
    x = 4,188,355,050.12/98,490.41
  6. Step 6: Final answer
    x = 42,525.51

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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.