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Finding the Fourth Proportional to 48,671.90, 72,980.51 and 15,400.34

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Solution

The fourth proportional to 48,671.90, 72,980.51 and 15,400.34 is: 23,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,671.90 : 72,980.51 = 15,400.34 : x
  2. Step 2: Convert to fraction form
    48,671.90/72,980.51 = 15,400.34/x
  3. Step 3: Cross multiply
    48,671.90x = 72,980.51 × 15,400.34
  4. Step 4: Simplify right side
    48,671.90x = 1,123,924,225.47
  5. Step 5: Solve for x
    x = 1,123,924,225.47/48,671.90
  6. Step 6: Final answer
    x = 23,091.85

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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.