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Finding the Fourth Proportional to 70,376.66, 97,121.04 and 38,543.51

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Solution

The fourth proportional to 70,376.66, 97,121.04 and 38,543.51 is: 53,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376.66 : 97,121.04 = 38,543.51 : x
  2. Step 2: Convert to fraction form
    70,376.66/97,121.04 = 38,543.51/x
  3. Step 3: Cross multiply
    70,376.66x = 97,121.04 × 38,543.51
  4. Step 4: Simplify right side
    70,376.66x = 3,743,385,290.85
  5. Step 5: Solve for x
    x = 3,743,385,290.85/70,376.66
  6. Step 6: Final answer
    x = 53,190.72

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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.