Home / 51,027.12-70,428.84-28,374.06

Finding the Fourth Proportional to 51,027.12, 70,428.84 and 28,374.06

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Solution

The fourth proportional to 51,027.12, 70,428.84 and 28,374.06 is: 39,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,027.12 : 70,428.84 = 28,374.06 : x
  2. Step 2: Convert to fraction form
    51,027.12/70,428.84 = 28,374.06/x
  3. Step 3: Cross multiply
    51,027.12x = 70,428.84 × 28,374.06
  4. Step 4: Simplify right side
    51,027.12x = 1,998,352,131.89
  5. Step 5: Solve for x
    x = 1,998,352,131.89/51,027.12
  6. Step 6: Final answer
    x = 39,162.55

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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.