Home / 92,632.20-138,989.80-42,685.56

Finding the Fourth Proportional to 92,632.20, 138,989.80 and 42,685.56

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Solution

The fourth proportional to 92,632.20, 138,989.80 and 42,685.56 is: 64,047.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,632.20 : 138,989.80 = 42,685.56 : x
  2. Step 2: Convert to fraction form
    92,632.20/138,989.80 = 42,685.56/x
  3. Step 3: Cross multiply
    92,632.20x = 138,989.80 × 42,685.56
  4. Step 4: Simplify right side
    92,632.20x = 5,932,857,447.29
  5. Step 5: Solve for x
    x = 5,932,857,447.29/92,632.20
  6. Step 6: Final answer
    x = 64,047.46

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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.