Home / 92,425.20-138,637.80-30,095.70

Finding the Fourth Proportional to 92,425.20, 138,637.80 and 30,095.70

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Solution

The fourth proportional to 92,425.20, 138,637.80 and 30,095.70 is: 45,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,425.20 : 138,637.80 = 30,095.70 : x
  2. Step 2: Convert to fraction form
    92,425.20/138,637.80 = 30,095.70/x
  3. Step 3: Cross multiply
    92,425.20x = 138,637.80 × 30,095.70
  4. Step 4: Simplify right side
    92,425.20x = 4,172,401,637.46
  5. Step 5: Solve for x
    x = 4,172,401,637.46/92,425.20
  6. Step 6: Final answer
    x = 45,143.55

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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.