Home / 56,687.68-85,031.64-15,134.56

Finding the Fourth Proportional to 56,687.68, 85,031.64 and 15,134.56

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Solution

The fourth proportional to 56,687.68, 85,031.64 and 15,134.56 is: 22,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.68 : 85,031.64 = 15,134.56 : x
  2. Step 2: Convert to fraction form
    56,687.68/85,031.64 = 15,134.56/x
  3. Step 3: Cross multiply
    56,687.68x = 85,031.64 × 15,134.56
  4. Step 4: Simplify right side
    56,687.68x = 1,286,916,457.48
  5. Step 5: Solve for x
    x = 1,286,916,457.48/56,687.68
  6. Step 6: Final answer
    x = 22,701.87

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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.