Home / 87,547.52-120,816.07-49,821.77

Finding the Fourth Proportional to 87,547.52, 120,816.07 and 49,821.77

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Solution

The fourth proportional to 87,547.52, 120,816.07 and 49,821.77 is: 68,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,547.52 : 120,816.07 = 49,821.77 : x
  2. Step 2: Convert to fraction form
    87,547.52/120,816.07 = 49,821.77/x
  3. Step 3: Cross multiply
    87,547.52x = 120,816.07 × 49,821.77
  4. Step 4: Simplify right side
    87,547.52x = 6,019,270,629.33
  5. Step 5: Solve for x
    x = 6,019,270,629.33/87,547.52
  6. Step 6: Final answer
    x = 68,754.32

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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.