Home / 51,931.68-71,700.32-30,717.76

Finding the Fourth Proportional to 51,931.68, 71,700.32 and 30,717.76

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Solution

The fourth proportional to 51,931.68, 71,700.32 and 30,717.76 is: 42,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,931.68 : 71,700.32 = 30,717.76 : x
  2. Step 2: Convert to fraction form
    51,931.68/71,700.32 = 30,717.76/x
  3. Step 3: Cross multiply
    51,931.68x = 71,700.32 × 30,717.76
  4. Step 4: Simplify right side
    51,931.68x = 2,202,473,221.68
  5. Step 5: Solve for x
    x = 2,202,473,221.68/51,931.68
  6. Step 6: Final answer
    x = 42,410.98

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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.