Home / 48,678.81-67,177.62-28,550.21

Finding the Fourth Proportional to 48,678.81, 67,177.62 and 28,550.21

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Solution

The fourth proportional to 48,678.81, 67,177.62 and 28,550.21 is: 39,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.81 : 67,177.62 = 28,550.21 : x
  2. Step 2: Convert to fraction form
    48,678.81/67,177.62 = 28,550.21/x
  3. Step 3: Cross multiply
    48,678.81x = 67,177.62 × 28,550.21
  4. Step 4: Simplify right side
    48,678.81x = 1,917,934,822.41
  5. Step 5: Solve for x
    x = 1,917,934,822.41/48,678.81
  6. Step 6: Final answer
    x = 39,399.79

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1.5x scale

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.