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Finding the Fourth Proportional to 70,593, 97,418.34 and 40,785

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Solution

The fourth proportional to 70,593, 97,418.34 and 40,785 is: 56,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,593 : 97,418.34 = 40,785 : x
  2. Step 2: Convert to fraction form
    70,593/97,418.34 = 40,785/x
  3. Step 3: Cross multiply
    70,593x = 97,418.34 × 40,785
  4. Step 4: Simplify right side
    70,593x = 3,973,206,996.90
  5. Step 5: Solve for x
    x = 3,973,206,996.90/70,593
  6. Step 6: Final answer
    x = 56,283.30

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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.