Home / 115,347.20-172,915.10-40,426.51

Finding the Fourth Proportional to 115,347.20, 172,915.10 and 40,426.51

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Solution

The fourth proportional to 115,347.20, 172,915.10 and 40,426.51 is: 60,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,347.20 : 172,915.10 = 40,426.51 : x
  2. Step 2: Convert to fraction form
    115,347.20/172,915.10 = 40,426.51/x
  3. Step 3: Cross multiply
    115,347.20x = 172,915.10 × 40,426.51
  4. Step 4: Simplify right side
    115,347.20x = 6,990,353,536.48
  5. Step 5: Solve for x
    x = 6,990,353,536.48/115,347.20
  6. Step 6: Final answer
    x = 60,602.71

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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.