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Finding the Fourth Proportional to 70,273.68, 96,978.57 and 38,443.11

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Solution

The fourth proportional to 70,273.68, 96,978.57 and 38,443.11 is: 53,051.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.68 : 96,978.57 = 38,443.11 : x
  2. Step 2: Convert to fraction form
    70,273.68/96,978.57 = 38,443.11/x
  3. Step 3: Cross multiply
    70,273.68x = 96,978.57 × 38,443.11
  4. Step 4: Simplify right side
    70,273.68x = 3,728,157,157.04
  5. Step 5: Solve for x
    x = 3,728,157,157.04/70,273.68
  6. Step 6: Final answer
    x = 53,051.97

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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.