Home / 70,565.82-105,839.64-17,972.16

Finding the Fourth Proportional to 70,565.82, 105,839.64 and 17,972.16

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Solution

The fourth proportional to 70,565.82, 105,839.64 and 17,972.16 is: 26,955.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,565.82 : 105,839.64 = 17,972.16 : x
  2. Step 2: Convert to fraction form
    70,565.82/105,839.64 = 17,972.16/x
  3. Step 3: Cross multiply
    70,565.82x = 105,839.64 × 17,972.16
  4. Step 4: Simplify right side
    70,565.82x = 1,902,166,944.42
  5. Step 5: Solve for x
    x = 1,902,166,944.42/70,565.82
  6. Step 6: Final answer
    x = 26,955.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.