Home / 83,633.51-115,510.10-55,080.79

Finding the Fourth Proportional to 83,633.51, 115,510.10 and 55,080.79

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Solution

The fourth proportional to 83,633.51, 115,510.10 and 55,080.79 is: 76,074.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,633.51 : 115,510.10 = 55,080.79 : x
  2. Step 2: Convert to fraction form
    83,633.51/115,510.10 = 55,080.79/x
  3. Step 3: Cross multiply
    83,633.51x = 115,510.10 × 55,080.79
  4. Step 4: Simplify right side
    83,633.51x = 6,362,386,996.80
  5. Step 5: Solve for x
    x = 6,362,386,996.80/83,633.51
  6. Step 6: Final answer
    x = 76,074.61

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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.