Home / 80,703.36-121,155.84-54,524.16

Finding the Fourth Proportional to 80,703.36, 121,155.84 and 54,524.16

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Solution

The fourth proportional to 80,703.36, 121,155.84 and 54,524.16 is: 81,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,703.36 : 121,155.84 = 54,524.16 : x
  2. Step 2: Convert to fraction form
    80,703.36/121,155.84 = 54,524.16/x
  3. Step 3: Cross multiply
    80,703.36x = 121,155.84 × 54,524.16
  4. Step 4: Simplify right side
    80,703.36x = 6,605,920,405.09
  5. Step 5: Solve for x
    x = 6,605,920,405.09/80,703.36
  6. Step 6: Final answer
    x = 81,854.34

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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.