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Finding the Fourth Proportional to 69,220.68, 103,831.02 and 19,298.76

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Solution

The fourth proportional to 69,220.68, 103,831.02 and 19,298.76 is: 28,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,220.68 : 103,831.02 = 19,298.76 : x
  2. Step 2: Convert to fraction form
    69,220.68/103,831.02 = 19,298.76/x
  3. Step 3: Cross multiply
    69,220.68x = 103,831.02 × 19,298.76
  4. Step 4: Simplify right side
    69,220.68x = 2,003,809,935.54
  5. Step 5: Solve for x
    x = 2,003,809,935.54/69,220.68
  6. Step 6: Final answer
    x = 28,948.14

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Similar ratio
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1.5x scale

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.