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Finding the Fourth Proportional to 70,759.77, 97,662.43 and 40,565.36

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Solution

The fourth proportional to 70,759.77, 97,662.43 and 40,565.36 is: 55,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.77 : 97,662.43 = 40,565.36 : x
  2. Step 2: Convert to fraction form
    70,759.77/97,662.43 = 40,565.36/x
  3. Step 3: Cross multiply
    70,759.77x = 97,662.43 × 40,565.36
  4. Step 4: Simplify right side
    70,759.77x = 3,961,711,631.42
  5. Step 5: Solve for x
    x = 3,961,711,631.42/70,759.77
  6. Step 6: Final answer
    x = 55,988.19

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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.