Home / 51,931.89-71,666.04-28,058.56

Finding the Fourth Proportional to 51,931.89, 71,666.04 and 28,058.56

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Solution

The fourth proportional to 51,931.89, 71,666.04 and 28,058.56 is: 38,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,931.89 : 71,666.04 = 28,058.56 : x
  2. Step 2: Convert to fraction form
    51,931.89/71,666.04 = 28,058.56/x
  3. Step 3: Cross multiply
    51,931.89x = 71,666.04 × 28,058.56
  4. Step 4: Simplify right side
    51,931.89x = 2,010,845,883.30
  5. Step 5: Solve for x
    x = 2,010,845,883.30/51,931.89
  6. Step 6: Final answer
    x = 38,720.83

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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.