Home / 99,633.10-149,534.70-40,511.20

Finding the Fourth Proportional to 99,633.10, 149,534.70 and 40,511.20

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Solution

The fourth proportional to 99,633.10, 149,534.70 and 40,511.20 is: 60,801.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,633.10 : 149,534.70 = 40,511.20 : x
  2. Step 2: Convert to fraction form
    99,633.10/149,534.70 = 40,511.20/x
  3. Step 3: Cross multiply
    99,633.10x = 149,534.70 × 40,511.20
  4. Step 4: Simplify right side
    99,633.10x = 6,057,830,138.64
  5. Step 5: Solve for x
    x = 6,057,830,138.64/99,633.10
  6. Step 6: Final answer
    x = 60,801.38

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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.