Home / 83,879.10-125,814.57-31,284.54

Finding the Fourth Proportional to 83,879.10, 125,814.57 and 31,284.54

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Solution

The fourth proportional to 83,879.10, 125,814.57 and 31,284.54 is: 46,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,879.10 : 125,814.57 = 31,284.54 : x
  2. Step 2: Convert to fraction form
    83,879.10/125,814.57 = 31,284.54/x
  3. Step 3: Cross multiply
    83,879.10x = 125,814.57 × 31,284.54
  4. Step 4: Simplify right side
    83,879.10x = 3,936,050,947.75
  5. Step 5: Solve for x
    x = 3,936,050,947.75/83,879.10
  6. Step 6: Final answer
    x = 46,925.29

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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.