Home / 69,259.86-103,897.28-21,876.18

Finding the Fourth Proportional to 69,259.86, 103,897.28 and 21,876.18

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Solution

The fourth proportional to 69,259.86, 103,897.28 and 21,876.18 is: 32,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,259.86 : 103,897.28 = 21,876.18 : x
  2. Step 2: Convert to fraction form
    69,259.86/103,897.28 = 21,876.18/x
  3. Step 3: Cross multiply
    69,259.86x = 103,897.28 × 21,876.18
  4. Step 4: Simplify right side
    69,259.86x = 2,272,875,263.87
  5. Step 5: Solve for x
    x = 2,272,875,263.87/69,259.86
  6. Step 6: Final answer
    x = 32,816.63

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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.