Home / 81,293.93-121,641.55-49,158.39

Finding the Fourth Proportional to 81,293.93, 121,641.55 and 49,158.39

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Solution

The fourth proportional to 81,293.93, 121,641.55 and 49,158.39 is: 73,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,293.93 : 121,641.55 = 49,158.39 : x
  2. Step 2: Convert to fraction form
    81,293.93/121,641.55 = 49,158.39/x
  3. Step 3: Cross multiply
    81,293.93x = 121,641.55 × 49,158.39
  4. Step 4: Simplify right side
    81,293.93x = 5,979,703,088.36
  5. Step 5: Solve for x
    x = 5,979,703,088.36/81,293.93
  6. Step 6: Final answer
    x = 73,556.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.