Home / 99,530.10-149,295.15-29,408.40

Finding the Fourth Proportional to 99,530.10, 149,295.15 and 29,408.40

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Solution

The fourth proportional to 99,530.10, 149,295.15 and 29,408.40 is: 44,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,530.10 : 149,295.15 = 29,408.40 : x
  2. Step 2: Convert to fraction form
    99,530.10/149,295.15 = 29,408.40/x
  3. Step 3: Cross multiply
    99,530.10x = 149,295.15 × 29,408.40
  4. Step 4: Simplify right side
    99,530.10x = 4,390,531,489.26
  5. Step 5: Solve for x
    x = 4,390,531,489.26/99,530.10
  6. Step 6: Final answer
    x = 44,112.60

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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.