Home / 75,689.26-103,694.77-72,851.56

Finding the Fourth Proportional to 75,689.26, 103,694.77 and 72,851.56

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Solution

The fourth proportional to 75,689.26, 103,694.77 and 72,851.56 is: 99,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,689.26 : 103,694.77 = 72,851.56 : x
  2. Step 2: Convert to fraction form
    75,689.26/103,694.77 = 72,851.56/x
  3. Step 3: Cross multiply
    75,689.26x = 103,694.77 × 72,851.56
  4. Step 4: Simplify right side
    75,689.26x = 7,554,325,758.34
  5. Step 5: Solve for x
    x = 7,554,325,758.34/75,689.26
  6. Step 6: Final answer
    x = 99,807.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.