Home / 51,135.74-70,553.13-32,978.78

Finding the Fourth Proportional to 51,135.74, 70,553.13 and 32,978.78

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Solution

The fourth proportional to 51,135.74, 70,553.13 and 32,978.78 is: 45,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,135.74 : 70,553.13 = 32,978.78 : x
  2. Step 2: Convert to fraction form
    51,135.74/70,553.13 = 32,978.78/x
  3. Step 3: Cross multiply
    51,135.74x = 70,553.13 × 32,978.78
  4. Step 4: Simplify right side
    51,135.74x = 2,326,756,152.58
  5. Step 5: Solve for x
    x = 2,326,756,152.58/51,135.74
  6. Step 6: Final answer
    x = 45,501.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.