Home / 90,428.63-124,793.01-50,144.09

Finding the Fourth Proportional to 90,428.63, 124,793.01 and 50,144.09

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Solution

The fourth proportional to 90,428.63, 124,793.01 and 50,144.09 is: 69,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,428.63 : 124,793.01 = 50,144.09 : x
  2. Step 2: Convert to fraction form
    90,428.63/124,793.01 = 50,144.09/x
  3. Step 3: Cross multiply
    90,428.63x = 124,793.01 × 50,144.09
  4. Step 4: Simplify right side
    90,428.63x = 6,257,631,924.81
  5. Step 5: Solve for x
    x = 6,257,631,924.81/90,428.63
  6. Step 6: Final answer
    x = 69,199.68

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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.