Home / 74,118.78-111,177.93-57,276.24

Finding the Fourth Proportional to 74,118.78, 111,177.93 and 57,276.24

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Solution

The fourth proportional to 74,118.78, 111,177.93 and 57,276.24 is: 85,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.78 : 111,177.93 = 57,276.24 : x
  2. Step 2: Convert to fraction form
    74,118.78/111,177.93 = 57,276.24/x
  3. Step 3: Cross multiply
    74,118.78x = 111,177.93 × 57,276.24
  4. Step 4: Simplify right side
    74,118.78x = 6,367,853,801.38
  5. Step 5: Solve for x
    x = 6,367,853,801.38/74,118.78
  6. Step 6: Final answer
    x = 85,914.17

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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.