Home / 72,987.48-100,693.13-51,508.41

Finding the Fourth Proportional to 72,987.48, 100,693.13 and 51,508.41

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Solution

The fourth proportional to 72,987.48, 100,693.13 and 51,508.41 is: 71,060.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,987.48 : 100,693.13 = 51,508.41 : x
  2. Step 2: Convert to fraction form
    72,987.48/100,693.13 = 51,508.41/x
  3. Step 3: Cross multiply
    72,987.48x = 100,693.13 × 51,508.41
  4. Step 4: Simplify right side
    72,987.48x = 5,186,542,389.08
  5. Step 5: Solve for x
    x = 5,186,542,389.08/72,987.48
  6. Step 6: Final answer
    x = 71,060.71

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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.