Home / 80,785.32-121,194.36-34,038.18

Finding the Fourth Proportional to 80,785.32, 121,194.36 and 34,038.18

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Solution

The fourth proportional to 80,785.32, 121,194.36 and 34,038.18 is: 51,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,785.32 : 121,194.36 = 34,038.18 : x
  2. Step 2: Convert to fraction form
    80,785.32/121,194.36 = 34,038.18/x
  3. Step 3: Cross multiply
    80,785.32x = 121,194.36 × 34,038.18
  4. Step 4: Simplify right side
    80,785.32x = 4,125,235,440.66
  5. Step 5: Solve for x
    x = 4,125,235,440.66/80,785.32
  6. Step 6: Final answer
    x = 51,064.17

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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.