Home / 48,979.68-67,590.48-28,831.92

Finding the Fourth Proportional to 48,979.68, 67,590.48 and 28,831.92

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Solution

The fourth proportional to 48,979.68, 67,590.48 and 28,831.92 is: 39,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,979.68 : 67,590.48 = 28,831.92 : x
  2. Step 2: Convert to fraction form
    48,979.68/67,590.48 = 28,831.92/x
  3. Step 3: Cross multiply
    48,979.68x = 67,590.48 × 28,831.92
  4. Step 4: Simplify right side
    48,979.68x = 1,948,763,312.12
  5. Step 5: Solve for x
    x = 1,948,763,312.12/48,979.68
  6. Step 6: Final answer
    x = 39,787.18

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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.