Home / 90,015.14-124,217.15-51,771.80

Finding the Fourth Proportional to 90,015.14, 124,217.15 and 51,771.80

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Solution

The fourth proportional to 90,015.14, 124,217.15 and 51,771.80 is: 71,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,015.14 : 124,217.15 = 51,771.80 : x
  2. Step 2: Convert to fraction form
    90,015.14/124,217.15 = 51,771.80/x
  3. Step 3: Cross multiply
    90,015.14x = 124,217.15 × 51,771.80
  4. Step 4: Simplify right side
    90,015.14x = 6,430,945,498.05
  5. Step 5: Solve for x
    x = 6,430,945,498.05/90,015.14
  6. Step 6: Final answer
    x = 71,442.93

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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.