Home / 99,372.20-148,961.10-49,411.40

Finding the Fourth Proportional to 99,372.20, 148,961.10 and 49,411.40

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Solution

The fourth proportional to 99,372.20, 148,961.10 and 49,411.40 is: 74,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,372.20 : 148,961.10 = 49,411.40 : x
  2. Step 2: Convert to fraction form
    99,372.20/148,961.10 = 49,411.40/x
  3. Step 3: Cross multiply
    99,372.20x = 148,961.10 × 49,411.40
  4. Step 4: Simplify right side
    99,372.20x = 7,360,376,496.54
  5. Step 5: Solve for x
    x = 7,360,376,496.54/99,372.20
  6. Step 6: Final answer
    x = 74,068.77

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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.