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Finding the Fourth Proportional to 70,397.44, 97,121.28 and 45,260.80

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Solution

The fourth proportional to 70,397.44, 97,121.28 and 45,260.80 is: 62,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.44 : 97,121.28 = 45,260.80 : x
  2. Step 2: Convert to fraction form
    70,397.44/97,121.28 = 45,260.80/x
  3. Step 3: Cross multiply
    70,397.44x = 97,121.28 × 45,260.80
  4. Step 4: Simplify right side
    70,397.44x = 4,395,786,829.82
  5. Step 5: Solve for x
    x = 4,395,786,829.82/70,397.44
  6. Step 6: Final answer
    x = 62,442.42

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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.