Home / 80,345.28-120,480.14-29,709.32

Finding the Fourth Proportional to 80,345.28, 120,480.14 and 29,709.32

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Solution

The fourth proportional to 80,345.28, 120,480.14 and 29,709.32 is: 44,550.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,345.28 : 120,480.14 = 29,709.32 : x
  2. Step 2: Convert to fraction form
    80,345.28/120,480.14 = 29,709.32/x
  3. Step 3: Cross multiply
    80,345.28x = 120,480.14 × 29,709.32
  4. Step 4: Simplify right side
    80,345.28x = 3,579,382,430.50
  5. Step 5: Solve for x
    x = 3,579,382,430.50/80,345.28
  6. Step 6: Final answer
    x = 44,550.00

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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.