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Finding the Fourth Proportional to 70,382.57, 97,100.92 and 40,169.57

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Solution

The fourth proportional to 70,382.57, 97,100.92 and 40,169.57 is: 55,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.57 : 97,100.92 = 40,169.57 : x
  2. Step 2: Convert to fraction form
    70,382.57/97,100.92 = 40,169.57/x
  3. Step 3: Cross multiply
    70,382.57x = 97,100.92 × 40,169.57
  4. Step 4: Simplify right side
    70,382.57x = 3,900,502,203.00
  5. Step 5: Solve for x
    x = 3,900,502,203.00/70,382.57
  6. Step 6: Final answer
    x = 55,418.58

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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.