Home / 70,292.10-105,438.24-17,701.20

Finding the Fourth Proportional to 70,292.10, 105,438.24 and 17,701.20

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Solution

The fourth proportional to 70,292.10, 105,438.24 and 17,701.20 is: 26,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,292.10 : 105,438.24 = 17,701.20 : x
  2. Step 2: Convert to fraction form
    70,292.10/105,438.24 = 17,701.20/x
  3. Step 3: Cross multiply
    70,292.10x = 105,438.24 × 17,701.20
  4. Step 4: Simplify right side
    70,292.10x = 1,866,383,373.89
  5. Step 5: Solve for x
    x = 1,866,383,373.89/70,292.10
  6. Step 6: Final answer
    x = 26,551.82

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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.