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Finding the Fourth Proportional to 56,993.68, 85,507.80 and 40,385.89

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Solution

The fourth proportional to 56,993.68, 85,507.80 and 40,385.89 is: 60,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,993.68 : 85,507.80 = 40,385.89 : x
  2. Step 2: Convert to fraction form
    56,993.68/85,507.80 = 40,385.89/x
  3. Step 3: Cross multiply
    56,993.68x = 85,507.80 × 40,385.89
  4. Step 4: Simplify right side
    56,993.68x = 3,453,308,604.94
  5. Step 5: Solve for x
    x = 3,453,308,604.94/56,993.68
  6. Step 6: Final answer
    x = 60,591.08

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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.