Home / 70,257.54-105,386.40-17,667.04

Finding the Fourth Proportional to 70,257.54, 105,386.40 and 17,667.04

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Solution

The fourth proportional to 70,257.54, 105,386.40 and 17,667.04 is: 26,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,257.54 : 105,386.40 = 17,667.04 : x
  2. Step 2: Convert to fraction form
    70,257.54/105,386.40 = 17,667.04/x
  3. Step 3: Cross multiply
    70,257.54x = 105,386.40 × 17,667.04
  4. Step 4: Simplify right side
    70,257.54x = 1,861,865,744.26
  5. Step 5: Solve for x
    x = 1,861,865,744.26/70,257.54
  6. Step 6: Final answer
    x = 26,500.58

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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.