Home / 115,425.77-173,148.53-40,539.40

Finding the Fourth Proportional to 115,425.77, 173,148.53 and 40,539.40

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Solution

The fourth proportional to 115,425.77, 173,148.53 and 40,539.40 is: 60,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,425.77 : 173,148.53 = 40,539.40 : x
  2. Step 2: Convert to fraction form
    115,425.77/173,148.53 = 40,539.40/x
  3. Step 3: Cross multiply
    115,425.77x = 173,148.53 × 40,539.40
  4. Step 4: Simplify right side
    115,425.77x = 7,019,337,517.08
  5. Step 5: Solve for x
    x = 7,019,337,517.08/115,425.77
  6. Step 6: Final answer
    x = 60,812.57

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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.