Home / 53,920.92-80,853.75-28,981.95

Finding the Fourth Proportional to 53,920.92, 80,853.75 and 28,981.95

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Solution

The fourth proportional to 53,920.92, 80,853.75 and 28,981.95 is: 43,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.92 : 80,853.75 = 28,981.95 : x
  2. Step 2: Convert to fraction form
    53,920.92/80,853.75 = 28,981.95/x
  3. Step 3: Cross multiply
    53,920.92x = 80,853.75 × 28,981.95
  4. Step 4: Simplify right side
    53,920.92x = 2,343,299,339.81
  5. Step 5: Solve for x
    x = 2,343,299,339.81/53,920.92
  6. Step 6: Final answer
    x = 43,458.07

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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.