Home / 81,270.90-112,148.54-45,454.70

Finding the Fourth Proportional to 81,270.90, 112,148.54 and 45,454.70

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Solution

The fourth proportional to 81,270.90, 112,148.54 and 45,454.70 is: 62,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,270.90 : 112,148.54 = 45,454.70 : x
  2. Step 2: Convert to fraction form
    81,270.90/112,148.54 = 45,454.70/x
  3. Step 3: Cross multiply
    81,270.90x = 112,148.54 × 45,454.70
  4. Step 4: Simplify right side
    81,270.90x = 5,097,678,241.14
  5. Step 5: Solve for x
    x = 5,097,678,241.14/81,270.90
  6. Step 6: Final answer
    x = 62,724.52

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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.