Home / 70,934.16-106,442.70-39,370.80

Finding the Fourth Proportional to 70,934.16, 106,442.70 and 39,370.80

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Solution

The fourth proportional to 70,934.16, 106,442.70 and 39,370.80 is: 59,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,934.16 : 106,442.70 = 39,370.80 : x
  2. Step 2: Convert to fraction form
    70,934.16/106,442.70 = 39,370.80/x
  3. Step 3: Cross multiply
    70,934.16x = 106,442.70 × 39,370.80
  4. Step 4: Simplify right side
    70,934.16x = 4,190,734,253.16
  5. Step 5: Solve for x
    x = 4,190,734,253.16/70,934.16
  6. Step 6: Final answer
    x = 59,079.21

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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.