Home / 90,727.89-136,102.77-38,130.54

Finding the Fourth Proportional to 90,727.89, 136,102.77 and 38,130.54

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Solution

The fourth proportional to 90,727.89, 136,102.77 and 38,130.54 is: 57,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,727.89 : 136,102.77 = 38,130.54 : x
  2. Step 2: Convert to fraction form
    90,727.89/136,102.77 = 38,130.54/x
  3. Step 3: Cross multiply
    90,727.89x = 136,102.77 × 38,130.54
  4. Step 4: Simplify right side
    90,727.89x = 5,189,672,115.60
  5. Step 5: Solve for x
    x = 5,189,672,115.60/90,727.89
  6. Step 6: Final answer
    x = 57,200.41

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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.