Home / 90,268.70-124,532.21-54,438.34

Finding the Fourth Proportional to 90,268.70, 124,532.21 and 54,438.34

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Solution

The fourth proportional to 90,268.70, 124,532.21 and 54,438.34 is: 75,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,268.70 : 124,532.21 = 54,438.34 : x
  2. Step 2: Convert to fraction form
    90,268.70/124,532.21 = 54,438.34/x
  3. Step 3: Cross multiply
    90,268.70x = 124,532.21 × 54,438.34
  4. Step 4: Simplify right side
    90,268.70x = 6,779,326,788.93
  5. Step 5: Solve for x
    x = 6,779,326,788.93/90,268.70
  6. Step 6: Final answer
    x = 75,101.63

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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.