Home / 51,041.31-70,436.93-28,379.58

Finding the Fourth Proportional to 51,041.31, 70,436.93 and 28,379.58

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Solution

The fourth proportional to 51,041.31, 70,436.93 and 28,379.58 is: 39,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,041.31 : 70,436.93 = 28,379.58 : x
  2. Step 2: Convert to fraction form
    51,041.31/70,436.93 = 28,379.58/x
  3. Step 3: Cross multiply
    51,041.31x = 70,436.93 × 28,379.58
  4. Step 4: Simplify right side
    51,041.31x = 1,998,970,347.99
  5. Step 5: Solve for x
    x = 1,998,970,347.99/51,041.31
  6. Step 6: Final answer
    x = 39,163.77

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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.