Home / 53,919.86-80,904.87-20,628.95

Finding the Fourth Proportional to 53,919.86, 80,904.87 and 20,628.95

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Solution

The fourth proportional to 53,919.86, 80,904.87 and 20,628.95 is: 30,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.86 : 80,904.87 = 20,628.95 : x
  2. Step 2: Convert to fraction form
    53,919.86/80,904.87 = 20,628.95/x
  3. Step 3: Cross multiply
    53,919.86x = 80,904.87 × 20,628.95
  4. Step 4: Simplify right side
    53,919.86x = 1,668,982,113.46
  5. Step 5: Solve for x
    x = 1,668,982,113.46/53,919.86
  6. Step 6: Final answer
    x = 30,953.02

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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.