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Finding the Fourth Proportional to 70,377.60, 97,122.66 and 40,162.32

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Solution

The fourth proportional to 70,377.60, 97,122.66 and 40,162.32 is: 55,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,377.60 : 97,122.66 = 40,162.32 : x
  2. Step 2: Convert to fraction form
    70,377.60/97,122.66 = 40,162.32/x
  3. Step 3: Cross multiply
    70,377.60x = 97,122.66 × 40,162.32
  4. Step 4: Simplify right side
    70,377.60x = 3,900,671,350.17
  5. Step 5: Solve for x
    x = 3,900,671,350.17/70,377.60
  6. Step 6: Final answer
    x = 55,424.90

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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.