Home / 56,371.72-77,794.91-30,879.62

Finding the Fourth Proportional to 56,371.72, 77,794.91 and 30,879.62

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Solution

The fourth proportional to 56,371.72, 77,794.91 and 30,879.62 is: 42,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,371.72 : 77,794.91 = 30,879.62 : x
  2. Step 2: Convert to fraction form
    56,371.72/77,794.91 = 30,879.62/x
  3. Step 3: Cross multiply
    56,371.72x = 77,794.91 × 30,879.62
  4. Step 4: Simplify right side
    56,371.72x = 2,402,277,258.73
  5. Step 5: Solve for x
    x = 2,402,277,258.73/56,371.72
  6. Step 6: Final answer
    x = 42,614.94

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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.