Home / 51,354.33-70,866.39-28,688.82

Finding the Fourth Proportional to 51,354.33, 70,866.39 and 28,688.82

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Solution

The fourth proportional to 51,354.33, 70,866.39 and 28,688.82 is: 39,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,354.33 : 70,866.39 = 28,688.82 : x
  2. Step 2: Convert to fraction form
    51,354.33/70,866.39 = 28,688.82/x
  3. Step 3: Cross multiply
    51,354.33x = 70,866.39 × 28,688.82
  4. Step 4: Simplify right side
    51,354.33x = 2,033,073,106.76
  5. Step 5: Solve for x
    x = 2,033,073,106.76/51,354.33
  6. Step 6: Final answer
    x = 39,589.13

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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.