Home / 90,575.76-135,819.93-37,971.12

Finding the Fourth Proportional to 90,575.76, 135,819.93 and 37,971.12

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Solution

The fourth proportional to 90,575.76, 135,819.93 and 37,971.12 is: 56,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,575.76 : 135,819.93 = 37,971.12 : x
  2. Step 2: Convert to fraction form
    90,575.76/135,819.93 = 37,971.12/x
  3. Step 3: Cross multiply
    90,575.76x = 135,819.93 × 37,971.12
  4. Step 4: Simplify right side
    90,575.76x = 5,157,234,860.42
  5. Step 5: Solve for x
    x = 5,157,234,860.42/90,575.76
  6. Step 6: Final answer
    x = 56,938.36

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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.