Home / 91,987.72-126,943.41-51,703.18

Finding the Fourth Proportional to 91,987.72, 126,943.41 and 51,703.18

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Solution

The fourth proportional to 91,987.72, 126,943.41 and 51,703.18 is: 71,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,987.72 : 126,943.41 = 51,703.18 : x
  2. Step 2: Convert to fraction form
    91,987.72/126,943.41 = 51,703.18/x
  3. Step 3: Cross multiply
    91,987.72x = 126,943.41 × 51,703.18
  4. Step 4: Simplify right side
    91,987.72x = 6,563,377,977.04
  5. Step 5: Solve for x
    x = 6,563,377,977.04/91,987.72
  6. Step 6: Final answer
    x = 71,350.59

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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.