Home / 75,272.13-112,908.24-19,116.45

Finding the Fourth Proportional to 75,272.13, 112,908.24 and 19,116.45

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Solution

The fourth proportional to 75,272.13, 112,908.24 and 19,116.45 is: 28,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272.13 : 112,908.24 = 19,116.45 : x
  2. Step 2: Convert to fraction form
    75,272.13/112,908.24 = 19,116.45/x
  3. Step 3: Cross multiply
    75,272.13x = 112,908.24 × 19,116.45
  4. Step 4: Simplify right side
    75,272.13x = 2,158,404,724.55
  5. Step 5: Solve for x
    x = 2,158,404,724.55/75,272.13
  6. Step 6: Final answer
    x = 28,674.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.