Home / 91,843.18-126,743.52-51,557.02

Finding the Fourth Proportional to 91,843.18, 126,743.52 and 51,557.02

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Solution

The fourth proportional to 91,843.18, 126,743.52 and 51,557.02 is: 71,148.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,843.18 : 126,743.52 = 51,557.02 : x
  2. Step 2: Convert to fraction form
    91,843.18/126,743.52 = 51,557.02/x
  3. Step 3: Cross multiply
    91,843.18x = 126,743.52 × 51,557.02
  4. Step 4: Simplify right side
    91,843.18x = 6,534,518,071.99
  5. Step 5: Solve for x
    x = 6,534,518,071.99/91,843.18
  6. Step 6: Final answer
    x = 71,148.65

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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.