Home / 99,533.17-149,298.83-40,354.78

Finding the Fourth Proportional to 99,533.17, 149,298.83 and 40,354.78

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Solution

The fourth proportional to 99,533.17, 149,298.83 and 40,354.78 is: 60,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,533.17 : 149,298.83 = 40,354.78 : x
  2. Step 2: Convert to fraction form
    99,533.17/149,298.83 = 40,354.78/x
  3. Step 3: Cross multiply
    99,533.17x = 149,298.83 × 40,354.78
  4. Step 4: Simplify right side
    99,533.17x = 6,024,921,438.91
  5. Step 5: Solve for x
    x = 6,024,921,438.91/99,533.17
  6. Step 6: Final answer
    x = 60,531.79

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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.