Home / 78,566.09-108,548.06-54,798.87

Finding the Fourth Proportional to 78,566.09, 108,548.06 and 54,798.87

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Solution

The fourth proportional to 78,566.09, 108,548.06 and 54,798.87 is: 75,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,566.09 : 108,548.06 = 54,798.87 : x
  2. Step 2: Convert to fraction form
    78,566.09/108,548.06 = 54,798.87/x
  3. Step 3: Cross multiply
    78,566.09x = 108,548.06 × 54,798.87
  4. Step 4: Simplify right side
    78,566.09x = 5,948,310,754.70
  5. Step 5: Solve for x
    x = 5,948,310,754.70/78,566.09
  6. Step 6: Final answer
    x = 75,710.92

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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.