Home / 54,938.52-82,433.70-19,868.76

Finding the Fourth Proportional to 54,938.52, 82,433.70 and 19,868.76

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Solution

The fourth proportional to 54,938.52, 82,433.70 and 19,868.76 is: 29,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,938.52 : 82,433.70 = 19,868.76 : x
  2. Step 2: Convert to fraction form
    54,938.52/82,433.70 = 19,868.76/x
  3. Step 3: Cross multiply
    54,938.52x = 82,433.70 × 19,868.76
  4. Step 4: Simplify right side
    54,938.52x = 1,637,855,401.21
  5. Step 5: Solve for x
    x = 1,637,855,401.21/54,938.52
  6. Step 6: Final answer
    x = 29,812.51

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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.