Home / 80,718.62-111,275.05-53,449.07

Finding the Fourth Proportional to 80,718.62, 111,275.05 and 53,449.07

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Solution

The fourth proportional to 80,718.62, 111,275.05 and 53,449.07 is: 73,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.62 : 111,275.05 = 53,449.07 : x
  2. Step 2: Convert to fraction form
    80,718.62/111,275.05 = 53,449.07/x
  3. Step 3: Cross multiply
    80,718.62x = 111,275.05 × 53,449.07
  4. Step 4: Simplify right side
    80,718.62x = 5,947,547,936.70
  5. Step 5: Solve for x
    x = 5,947,547,936.70/80,718.62
  6. Step 6: Final answer
    x = 73,682.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.