Home / 56,171.08-77,480.49-42,712.82

Finding the Fourth Proportional to 56,171.08, 77,480.49 and 42,712.82

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Solution

The fourth proportional to 56,171.08, 77,480.49 and 42,712.82 is: 58,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,171.08 : 77,480.49 = 42,712.82 : x
  2. Step 2: Convert to fraction form
    56,171.08/77,480.49 = 42,712.82/x
  3. Step 3: Cross multiply
    56,171.08x = 77,480.49 × 42,712.82
  4. Step 4: Simplify right side
    56,171.08x = 3,309,410,481.77
  5. Step 5: Solve for x
    x = 3,309,410,481.77/56,171.08
  6. Step 6: Final answer
    x = 58,916.63

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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.