Home / 51,135.06-70,352.10-45,057.90

Finding the Fourth Proportional to 51,135.06, 70,352.10 and 45,057.90

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Solution

The fourth proportional to 51,135.06, 70,352.10 and 45,057.90 is: 61,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,135.06 : 70,352.10 = 45,057.90 : x
  2. Step 2: Convert to fraction form
    51,135.06/70,352.10 = 45,057.90/x
  3. Step 3: Cross multiply
    51,135.06x = 70,352.10 × 45,057.90
  4. Step 4: Simplify right side
    51,135.06x = 3,169,917,886.59
  5. Step 5: Solve for x
    x = 3,169,917,886.59/51,135.06
  6. Step 6: Final answer
    x = 61,991.09

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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.