Home / 83,261.60-124,816.80-30,658.40

Finding the Fourth Proportional to 83,261.60, 124,816.80 and 30,658.40

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Solution

The fourth proportional to 83,261.60, 124,816.80 and 30,658.40 is: 45,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,261.60 : 124,816.80 = 30,658.40 : x
  2. Step 2: Convert to fraction form
    83,261.60/124,816.80 = 30,658.40/x
  3. Step 3: Cross multiply
    83,261.60x = 124,816.80 × 30,658.40
  4. Step 4: Simplify right side
    83,261.60x = 3,826,683,381.12
  5. Step 5: Solve for x
    x = 3,826,683,381.12/83,261.60
  6. Step 6: Final answer
    x = 45,959.76

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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.