Home / 88,219.70-121,743.68-47,933.78

Finding the Fourth Proportional to 88,219.70, 121,743.68 and 47,933.78

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Solution

The fourth proportional to 88,219.70, 121,743.68 and 47,933.78 is: 66,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,219.70 : 121,743.68 = 47,933.78 : x
  2. Step 2: Convert to fraction form
    88,219.70/121,743.68 = 47,933.78/x
  3. Step 3: Cross multiply
    88,219.70x = 121,743.68 × 47,933.78
  4. Step 4: Simplify right side
    88,219.70x = 5,835,634,773.51
  5. Step 5: Solve for x
    x = 5,835,634,773.51/88,219.70
  6. Step 6: Final answer
    x = 66,148.88

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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.