Home / 84,516.30-126,590.23-42,322.79

Finding the Fourth Proportional to 84,516.30, 126,590.23 and 42,322.79

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Solution

The fourth proportional to 84,516.30, 126,590.23 and 42,322.79 is: 63,391.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,516.30 : 126,590.23 = 42,322.79 : x
  2. Step 2: Convert to fraction form
    84,516.30/126,590.23 = 42,322.79/x
  3. Step 3: Cross multiply
    84,516.30x = 126,590.23 × 42,322.79
  4. Step 4: Simplify right side
    84,516.30x = 5,357,651,851.66
  5. Step 5: Solve for x
    x = 5,357,651,851.66/84,516.30
  6. Step 6: Final answer
    x = 63,391.94

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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.