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Finding the Fourth Proportional to 70,343.50, 97,083.27 and 40,121.89

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Solution

The fourth proportional to 70,343.50, 97,083.27 and 40,121.89 is: 55,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,343.50 : 97,083.27 = 40,121.89 : x
  2. Step 2: Convert to fraction form
    70,343.50/97,083.27 = 40,121.89/x
  3. Step 3: Cross multiply
    70,343.50x = 97,083.27 × 40,121.89
  4. Step 4: Simplify right side
    70,343.50x = 3,895,163,593.75
  5. Step 5: Solve for x
    x = 3,895,163,593.75/70,343.50
  6. Step 6: Final answer
    x = 55,373.47

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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.