Home / 97,731.24-134,979.60-65,844.72

Finding the Fourth Proportional to 97,731.24, 134,979.60 and 65,844.72

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Solution

The fourth proportional to 97,731.24, 134,979.60 and 65,844.72 is: 90,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,731.24 : 134,979.60 = 65,844.72 : x
  2. Step 2: Convert to fraction form
    97,731.24/134,979.60 = 65,844.72/x
  3. Step 3: Cross multiply
    97,731.24x = 134,979.60 × 65,844.72
  4. Step 4: Simplify right side
    97,731.24x = 8,887,693,967.71
  5. Step 5: Solve for x
    x = 8,887,693,967.71/97,731.24
  6. Step 6: Final answer
    x = 90,940.15

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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.