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Finding the Fourth Proportional to 70,593.74, 97,437.38 and 40,388.57

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Solution

The fourth proportional to 70,593.74, 97,437.38 and 40,388.57 is: 55,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,593.74 : 97,437.38 = 40,388.57 : x
  2. Step 2: Convert to fraction form
    70,593.74/97,437.38 = 40,388.57/x
  3. Step 3: Cross multiply
    70,593.74x = 97,437.38 × 40,388.57
  4. Step 4: Simplify right side
    70,593.74x = 3,935,355,753.62
  5. Step 5: Solve for x
    x = 3,935,355,753.62/70,593.74
  6. Step 6: Final answer
    x = 55,746.53

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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.