Home / 84,244.80-126,367.20-77,829.60

Finding the Fourth Proportional to 84,244.80, 126,367.20 and 77,829.60

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Solution

The fourth proportional to 84,244.80, 126,367.20 and 77,829.60 is: 116,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,244.80 : 126,367.20 = 77,829.60 : x
  2. Step 2: Convert to fraction form
    84,244.80/126,367.20 = 77,829.60/x
  3. Step 3: Cross multiply
    84,244.80x = 126,367.20 × 77,829.60
  4. Step 4: Simplify right side
    84,244.80x = 9,835,108,629.12
  5. Step 5: Solve for x
    x = 9,835,108,629.12/84,244.80
  6. Step 6: Final answer
    x = 116,744.40

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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.