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Finding the Fourth Proportional to 70,382.32, 97,100.58 and 40,169.32

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Solution

The fourth proportional to 70,382.32, 97,100.58 and 40,169.32 is: 55,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.32 : 97,100.58 = 40,169.32 : x
  2. Step 2: Convert to fraction form
    70,382.32/97,100.58 = 40,169.32/x
  3. Step 3: Cross multiply
    70,382.32x = 97,100.58 × 40,169.32
  4. Step 4: Simplify right side
    70,382.32x = 3,900,464,270.21
  5. Step 5: Solve for x
    x = 3,900,464,270.21/70,382.32
  6. Step 6: Final answer
    x = 55,418.24

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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.