Home / 51,135.31-70,549.81-29,899.54

Finding the Fourth Proportional to 51,135.31, 70,549.81 and 29,899.54

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Solution

The fourth proportional to 51,135.31, 70,549.81 and 29,899.54 is: 41,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,135.31 : 70,549.81 = 29,899.54 : x
  2. Step 2: Convert to fraction form
    51,135.31/70,549.81 = 29,899.54/x
  3. Step 3: Cross multiply
    51,135.31x = 70,549.81 × 29,899.54
  4. Step 4: Simplify right side
    51,135.31x = 2,109,406,866.09
  5. Step 5: Solve for x
    x = 2,109,406,866.09/51,135.31
  6. Step 6: Final answer
    x = 41,251.47

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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.