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Finding the Fourth Proportional to 70,341.57, 97,080.62 and 40,119.96

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Solution

The fourth proportional to 70,341.57, 97,080.62 and 40,119.96 is: 55,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,341.57 : 97,080.62 = 40,119.96 : x
  2. Step 2: Convert to fraction form
    70,341.57/97,080.62 = 40,119.96/x
  3. Step 3: Cross multiply
    70,341.57x = 97,080.62 × 40,119.96
  4. Step 4: Simplify right side
    70,341.57x = 3,894,870,390.58
  5. Step 5: Solve for x
    x = 3,894,870,390.58/70,341.57
  6. Step 6: Final answer
    x = 55,370.82

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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.