Home / 70,279.18-105,432.88-25,906.16

Finding the Fourth Proportional to 70,279.18, 105,432.88 and 25,906.16

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Solution

The fourth proportional to 70,279.18, 105,432.88 and 25,906.16 is: 38,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,279.18 : 105,432.88 = 25,906.16 : x
  2. Step 2: Convert to fraction form
    70,279.18/105,432.88 = 25,906.16/x
  3. Step 3: Cross multiply
    70,279.18x = 105,432.88 × 25,906.16
  4. Step 4: Simplify right side
    70,279.18x = 2,731,361,058.54
  5. Step 5: Solve for x
    x = 2,731,361,058.54/70,279.18
  6. Step 6: Final answer
    x = 38,864.44

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1.5x scale

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.