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Finding the Fourth Proportional to 70,449.83, 97,221.94 and 38,185.47

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Solution

The fourth proportional to 70,449.83, 97,221.94 and 38,185.47 is: 52,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,449.83 : 97,221.94 = 38,185.47 : x
  2. Step 2: Convert to fraction form
    70,449.83/97,221.94 = 38,185.47/x
  3. Step 3: Cross multiply
    70,449.83x = 97,221.94 × 38,185.47
  4. Step 4: Simplify right side
    70,449.83x = 3,712,465,377.75
  5. Step 5: Solve for x
    x = 3,712,465,377.75/70,449.83
  6. Step 6: Final answer
    x = 52,696.59

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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.