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Finding the Fourth Proportional to 50,440.64, 75,655.20 and 19,275.20

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Solution

The fourth proportional to 50,440.64, 75,655.20 and 19,275.20 is: 28,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,440.64 : 75,655.20 = 19,275.20 : x
  2. Step 2: Convert to fraction form
    50,440.64/75,655.20 = 19,275.20/x
  3. Step 3: Cross multiply
    50,440.64x = 75,655.20 × 19,275.20
  4. Step 4: Simplify right side
    50,440.64x = 1,458,269,111.04
  5. Step 5: Solve for x
    x = 1,458,269,111.04/50,440.64
  6. Step 6: Final answer
    x = 28,910.60

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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.