Home / 70,374.24-105,568.28-20,454.75

Finding the Fourth Proportional to 70,374.24, 105,568.28 and 20,454.75

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Solution

The fourth proportional to 70,374.24, 105,568.28 and 20,454.75 is: 30,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,374.24 : 105,568.28 = 20,454.75 : x
  2. Step 2: Convert to fraction form
    70,374.24/105,568.28 = 20,454.75/x
  3. Step 3: Cross multiply
    70,374.24x = 105,568.28 × 20,454.75
  4. Step 4: Simplify right side
    70,374.24x = 2,159,372,775.33
  5. Step 5: Solve for x
    x = 2,159,372,775.33/70,374.24
  6. Step 6: Final answer
    x = 30,684.14

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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.