Home / 87,795.33-121,158.29-51,518.47

Finding the Fourth Proportional to 87,795.33, 121,158.29 and 51,518.47

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Solution

The fourth proportional to 87,795.33, 121,158.29 and 51,518.47 is: 71,095.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795.33 : 121,158.29 = 51,518.47 : x
  2. Step 2: Convert to fraction form
    87,795.33/121,158.29 = 51,518.47/x
  3. Step 3: Cross multiply
    87,795.33x = 121,158.29 × 51,518.47
  4. Step 4: Simplify right side
    87,795.33x = 6,241,889,728.62
  5. Step 5: Solve for x
    x = 6,241,889,728.62/87,795.33
  6. Step 6: Final answer
    x = 71,095.92

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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.