Home / 54,931.42-82,389.82-15,491.70

Finding the Fourth Proportional to 54,931.42, 82,389.82 and 15,491.70

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Solution

The fourth proportional to 54,931.42, 82,389.82 and 15,491.70 is: 23,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,931.42 : 82,389.82 = 15,491.70 : x
  2. Step 2: Convert to fraction form
    54,931.42/82,389.82 = 15,491.70/x
  3. Step 3: Cross multiply
    54,931.42x = 82,389.82 × 15,491.70
  4. Step 4: Simplify right side
    54,931.42x = 1,276,358,374.49
  5. Step 5: Solve for x
    x = 1,276,358,374.49/54,931.42
  6. Step 6: Final answer
    x = 23,235.49

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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.