Home / 57,838.08-79,792.92-38,981.28

Finding the Fourth Proportional to 57,838.08, 79,792.92 and 38,981.28

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Solution

The fourth proportional to 57,838.08, 79,792.92 and 38,981.28 is: 53,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,838.08 : 79,792.92 = 38,981.28 : x
  2. Step 2: Convert to fraction form
    57,838.08/79,792.92 = 38,981.28/x
  3. Step 3: Cross multiply
    57,838.08x = 79,792.92 × 38,981.28
  4. Step 4: Simplify right side
    57,838.08x = 3,110,430,156.54
  5. Step 5: Solve for x
    x = 3,110,430,156.54/57,838.08
  6. Step 6: Final answer
    x = 53,778.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.