Home / 80,725.60-111,261.36-76,060

Finding the Fourth Proportional to 80,725.60, 111,261.36 and 76,060

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Solution

The fourth proportional to 80,725.60, 111,261.36 and 76,060 is: 104,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,725.60 : 111,261.36 = 76,060 : x
  2. Step 2: Convert to fraction form
    80,725.60/111,261.36 = 76,060/x
  3. Step 3: Cross multiply
    80,725.60x = 111,261.36 × 76,060
  4. Step 4: Simplify right side
    80,725.60x = 8,462,539,041.60
  5. Step 5: Solve for x
    x = 8,462,539,041.60/80,725.60
  6. Step 6: Final answer
    x = 104,830.92

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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.