Home / 98,979.40-136,591.70-53,657.64

Finding the Fourth Proportional to 98,979.40, 136,591.70 and 53,657.64

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Solution

The fourth proportional to 98,979.40, 136,591.70 and 53,657.64 is: 74,047.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,979.40 : 136,591.70 = 53,657.64 : x
  2. Step 2: Convert to fraction form
    98,979.40/136,591.70 = 53,657.64/x
  3. Step 3: Cross multiply
    98,979.40x = 136,591.70 × 53,657.64
  4. Step 4: Simplify right side
    98,979.40x = 7,329,188,265.59
  5. Step 5: Solve for x
    x = 7,329,188,265.59/98,979.40
  6. Step 6: Final answer
    x = 74,047.61

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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.