Home / 55,919.40-83,879.10-31,036.20

Finding the Fourth Proportional to 55,919.40, 83,879.10 and 31,036.20

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Solution

The fourth proportional to 55,919.40, 83,879.10 and 31,036.20 is: 46,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.40 : 83,879.10 = 31,036.20 : x
  2. Step 2: Convert to fraction form
    55,919.40/83,879.10 = 31,036.20/x
  3. Step 3: Cross multiply
    55,919.40x = 83,879.10 × 31,036.20
  4. Step 4: Simplify right side
    55,919.40x = 2,603,288,523.42
  5. Step 5: Solve for x
    x = 2,603,288,523.42/55,919.40
  6. Step 6: Final answer
    x = 46,554.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.