Home / 60,582.78-90,867.69-21,140.64

Finding the Fourth Proportional to 60,582.78, 90,867.69 and 21,140.64

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Solution

The fourth proportional to 60,582.78, 90,867.69 and 21,140.64 is: 31,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,582.78 : 90,867.69 = 21,140.64 : x
  2. Step 2: Convert to fraction form
    60,582.78/90,867.69 = 21,140.64/x
  3. Step 3: Cross multiply
    60,582.78x = 90,867.69 × 21,140.64
  4. Step 4: Simplify right side
    60,582.78x = 1,921,001,121.92
  5. Step 5: Solve for x
    x = 1,921,001,121.92/60,582.78
  6. Step 6: Final answer
    x = 31,708.70

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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.