Home / 51,933.68-71,703.08-30,719.76

Finding the Fourth Proportional to 51,933.68, 71,703.08 and 30,719.76

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Solution

The fourth proportional to 51,933.68, 71,703.08 and 30,719.76 is: 42,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,933.68 : 71,703.08 = 30,719.76 : x
  2. Step 2: Convert to fraction form
    51,933.68/71,703.08 = 30,719.76/x
  3. Step 3: Cross multiply
    51,933.68x = 71,703.08 × 30,719.76
  4. Step 4: Simplify right side
    51,933.68x = 2,202,701,408.86
  5. Step 5: Solve for x
    x = 2,202,701,408.86/51,933.68
  6. Step 6: Final answer
    x = 42,413.74

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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.