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Finding the Fourth Proportional to 98,005.80, 135,244.26 and 53,293.80

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Solution

The fourth proportional to 98,005.80, 135,244.26 and 53,293.80 is: 73,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,005.80 : 135,244.26 = 53,293.80 : x
  2. Step 2: Convert to fraction form
    98,005.80/135,244.26 = 53,293.80/x
  3. Step 3: Cross multiply
    98,005.80x = 135,244.26 × 53,293.80
  4. Step 4: Simplify right side
    98,005.80x = 7,207,680,543.59
  5. Step 5: Solve for x
    x = 7,207,680,543.59/98,005.80
  6. Step 6: Final answer
    x = 73,543.41

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1.5x scale

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.