Home / 70,585.40-105,921.96-43,983.60

Finding the Fourth Proportional to 70,585.40, 105,921.96 and 43,983.60

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Solution

The fourth proportional to 70,585.40, 105,921.96 and 43,983.60 is: 66,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.40 : 105,921.96 = 43,983.60 : x
  2. Step 2: Convert to fraction form
    70,585.40/105,921.96 = 43,983.60/x
  3. Step 3: Cross multiply
    70,585.40x = 105,921.96 × 43,983.60
  4. Step 4: Simplify right side
    70,585.40x = 4,658,829,119.86
  5. Step 5: Solve for x
    x = 4,658,829,119.86/70,585.40
  6. Step 6: Final answer
    x = 66,002.73

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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.