Home / 53,938.66-80,908-18,888.34

Finding the Fourth Proportional to 53,938.66, 80,908 and 18,888.34

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Solution

The fourth proportional to 53,938.66, 80,908 and 18,888.34 is: 28,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,938.66 : 80,908 = 18,888.34 : x
  2. Step 2: Convert to fraction form
    53,938.66/80,908 = 18,888.34/x
  3. Step 3: Cross multiply
    53,938.66x = 80,908 × 18,888.34
  4. Step 4: Simplify right side
    53,938.66x = 1,528,217,812.72
  5. Step 5: Solve for x
    x = 1,528,217,812.72/53,938.66
  6. Step 6: Final answer
    x = 28,332.51

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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.