Home / 72,844.90-100,554.21-56,934.52

Finding the Fourth Proportional to 72,844.90, 100,554.21 and 56,934.52

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Solution

The fourth proportional to 72,844.90, 100,554.21 and 56,934.52 is: 78,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,844.90 : 100,554.21 = 56,934.52 : x
  2. Step 2: Convert to fraction form
    72,844.90/100,554.21 = 56,934.52/x
  3. Step 3: Cross multiply
    72,844.90x = 100,554.21 × 56,934.52
  4. Step 4: Simplify right side
    72,844.90x = 5,725,005,680.33
  5. Step 5: Solve for x
    x = 5,725,005,680.33/72,844.90
  6. Step 6: Final answer
    x = 78,591.72

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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.