Home / 80,746.24-121,119.42-38,616.40

Finding the Fourth Proportional to 80,746.24, 121,119.42 and 38,616.40

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Solution

The fourth proportional to 80,746.24, 121,119.42 and 38,616.40 is: 57,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,746.24 : 121,119.42 = 38,616.40 : x
  2. Step 2: Convert to fraction form
    80,746.24/121,119.42 = 38,616.40/x
  3. Step 3: Cross multiply
    80,746.24x = 121,119.42 × 38,616.40
  4. Step 4: Simplify right side
    80,746.24x = 4,677,195,970.49
  5. Step 5: Solve for x
    x = 4,677,195,970.49/80,746.24
  6. Step 6: Final answer
    x = 57,924.63

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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.