Home / 75,011.32-112,508.28-19,611.64

Finding the Fourth Proportional to 75,011.32, 112,508.28 and 19,611.64

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Solution

The fourth proportional to 75,011.32, 112,508.28 and 19,611.64 is: 29,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,011.32 : 112,508.28 = 19,611.64 : x
  2. Step 2: Convert to fraction form
    75,011.32/112,508.28 = 19,611.64/x
  3. Step 3: Cross multiply
    75,011.32x = 112,508.28 × 19,611.64
  4. Step 4: Simplify right side
    75,011.32x = 2,206,471,884.38
  5. Step 5: Solve for x
    x = 2,206,471,884.38/75,011.32
  6. Step 6: Final answer
    x = 29,415.19

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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.