Home / 83,048.40-124,558.20-30,430.80

Finding the Fourth Proportional to 83,048.40, 124,558.20 and 30,430.80

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Solution

The fourth proportional to 83,048.40, 124,558.20 and 30,430.80 is: 45,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,048.40 : 124,558.20 = 30,430.80 : x
  2. Step 2: Convert to fraction form
    83,048.40/124,558.20 = 30,430.80/x
  3. Step 3: Cross multiply
    83,048.40x = 124,558.20 × 30,430.80
  4. Step 4: Simplify right side
    83,048.40x = 3,790,405,672.56
  5. Step 5: Solve for x
    x = 3,790,405,672.56/83,048.40
  6. Step 6: Final answer
    x = 45,640.92

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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.