Home / 51,654.72-77,462.64-40,690.56

Finding the Fourth Proportional to 51,654.72, 77,462.64 and 40,690.56

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Solution

The fourth proportional to 51,654.72, 77,462.64 and 40,690.56 is: 61,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,654.72 : 77,462.64 = 40,690.56 : x
  2. Step 2: Convert to fraction form
    51,654.72/77,462.64 = 40,690.56/x
  3. Step 3: Cross multiply
    51,654.72x = 77,462.64 × 40,690.56
  4. Step 4: Simplify right side
    51,654.72x = 3,151,998,200.68
  5. Step 5: Solve for x
    x = 3,151,998,200.68/51,654.72
  6. Step 6: Final answer
    x = 61,020.53

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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.