Home / 75,159.12-103,696.20-50,012.88

Finding the Fourth Proportional to 75,159.12, 103,696.20 and 50,012.88

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Solution

The fourth proportional to 75,159.12, 103,696.20 and 50,012.88 is: 69,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,159.12 : 103,696.20 = 50,012.88 : x
  2. Step 2: Convert to fraction form
    75,159.12/103,696.20 = 50,012.88/x
  3. Step 3: Cross multiply
    75,159.12x = 103,696.20 × 50,012.88
  4. Step 4: Simplify right side
    75,159.12x = 5,186,145,607.06
  5. Step 5: Solve for x
    x = 5,186,145,607.06/75,159.12
  6. Step 6: Final answer
    x = 69,002.21

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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.