Home / 51,985.90-71,740.59-28,112.56

Finding the Fourth Proportional to 51,985.90, 71,740.59 and 28,112.56

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Solution

The fourth proportional to 51,985.90, 71,740.59 and 28,112.56 is: 38,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.90 : 71,740.59 = 28,112.56 : x
  2. Step 2: Convert to fraction form
    51,985.90/71,740.59 = 28,112.56/x
  3. Step 3: Cross multiply
    51,985.90x = 71,740.59 × 28,112.56
  4. Step 4: Simplify right side
    51,985.90x = 2,016,811,640.81
  5. Step 5: Solve for x
    x = 2,016,811,640.81/51,985.90
  6. Step 6: Final answer
    x = 38,795.36

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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.