Home / 69,975.74-104,959.28-28,421.66

Finding the Fourth Proportional to 69,975.74, 104,959.28 and 28,421.66

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Solution

The fourth proportional to 69,975.74, 104,959.28 and 28,421.66 is: 42,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,975.74 : 104,959.28 = 28,421.66 : x
  2. Step 2: Convert to fraction form
    69,975.74/104,959.28 = 28,421.66/x
  3. Step 3: Cross multiply
    69,975.74x = 104,959.28 × 28,421.66
  4. Step 4: Simplify right side
    69,975.74x = 2,983,116,970.00
  5. Step 5: Solve for x
    x = 2,983,116,970.00/69,975.74
  6. Step 6: Final answer
    x = 42,630.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.