Home / 99,570.60-149,352.12-40,390.38

Finding the Fourth Proportional to 99,570.60, 149,352.12 and 40,390.38

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Solution

The fourth proportional to 99,570.60, 149,352.12 and 40,390.38 is: 60,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,570.60 : 149,352.12 = 40,390.38 : x
  2. Step 2: Convert to fraction form
    99,570.60/149,352.12 = 40,390.38/x
  3. Step 3: Cross multiply
    99,570.60x = 149,352.12 × 40,390.38
  4. Step 4: Simplify right side
    99,570.60x = 6,032,388,880.61
  5. Step 5: Solve for x
    x = 6,032,388,880.61/99,570.60
  6. Step 6: Final answer
    x = 60,584.04

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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.