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Finding the Fourth Proportional to 57,433.80, 85,956.30 and 50,435.40

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Solution

The fourth proportional to 57,433.80, 85,956.30 and 50,435.40 is: 75,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,433.80 : 85,956.30 = 50,435.40 : x
  2. Step 2: Convert to fraction form
    57,433.80/85,956.30 = 50,435.40/x
  3. Step 3: Cross multiply
    57,433.80x = 85,956.30 × 50,435.40
  4. Step 4: Simplify right side
    57,433.80x = 4,335,240,373.02
  5. Step 5: Solve for x
    x = 4,335,240,373.02/57,433.80
  6. Step 6: Final answer
    x = 75,482.39

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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.