Home / 55,855.32-77,083.83-31,981.38

Finding the Fourth Proportional to 55,855.32, 77,083.83 and 31,981.38

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Solution

The fourth proportional to 55,855.32, 77,083.83 and 31,981.38 is: 44,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.32 : 77,083.83 = 31,981.38 : x
  2. Step 2: Convert to fraction form
    55,855.32/77,083.83 = 31,981.38/x
  3. Step 3: Cross multiply
    55,855.32x = 77,083.83 × 31,981.38
  4. Step 4: Simplify right side
    55,855.32x = 2,465,247,259.09
  5. Step 5: Solve for x
    x = 2,465,247,259.09/55,855.32
  6. Step 6: Final answer
    x = 44,136.30

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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.