Home / 91,530.80-126,320.28-51,244.04

Finding the Fourth Proportional to 91,530.80, 126,320.28 and 51,244.04

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Solution

The fourth proportional to 91,530.80, 126,320.28 and 51,244.04 is: 70,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,530.80 : 126,320.28 = 51,244.04 : x
  2. Step 2: Convert to fraction form
    91,530.80/126,320.28 = 51,244.04/x
  3. Step 3: Cross multiply
    91,530.80x = 126,320.28 × 51,244.04
  4. Step 4: Simplify right side
    91,530.80x = 6,473,161,481.13
  5. Step 5: Solve for x
    x = 6,473,161,481.13/91,530.80
  6. Step 6: Final answer
    x = 70,721.13

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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.