Home / 75,328.30-112,993.08-19,168.48

Finding the Fourth Proportional to 75,328.30, 112,993.08 and 19,168.48

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Solution

The fourth proportional to 75,328.30, 112,993.08 and 19,168.48 is: 28,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328.30 : 112,993.08 = 19,168.48 : x
  2. Step 2: Convert to fraction form
    75,328.30/112,993.08 = 19,168.48/x
  3. Step 3: Cross multiply
    75,328.30x = 112,993.08 × 19,168.48
  4. Step 4: Simplify right side
    75,328.30x = 2,165,905,594.12
  5. Step 5: Solve for x
    x = 2,165,905,594.12/75,328.30
  6. Step 6: Final answer
    x = 28,752.88

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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.