Home / 83,247.40-124,856.70-30,629.80

Finding the Fourth Proportional to 83,247.40, 124,856.70 and 30,629.80

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Solution

The fourth proportional to 83,247.40, 124,856.70 and 30,629.80 is: 45,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,247.40 : 124,856.70 = 30,629.80 : x
  2. Step 2: Convert to fraction form
    83,247.40/124,856.70 = 30,629.80/x
  3. Step 3: Cross multiply
    83,247.40x = 124,856.70 × 30,629.80
  4. Step 4: Simplify right side
    83,247.40x = 3,824,335,749.66
  5. Step 5: Solve for x
    x = 3,824,335,749.66/83,247.40
  6. Step 6: Final answer
    x = 45,939.40

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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.