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Finding the Fourth Proportional to 54,763.80, 75,568.57 and 30,894.72

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Solution

The fourth proportional to 54,763.80, 75,568.57 and 30,894.72 is: 42,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,763.80 : 75,568.57 = 30,894.72 : x
  2. Step 2: Convert to fraction form
    54,763.80/75,568.57 = 30,894.72/x
  3. Step 3: Cross multiply
    54,763.80x = 75,568.57 × 30,894.72
  4. Step 4: Simplify right side
    54,763.80x = 2,334,669,810.95
  5. Step 5: Solve for x
    x = 2,334,669,810.95/54,763.80
  6. Step 6: Final answer
    x = 42,631.63

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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.