Home / 90,406.40-135,609.53-23,851.67

Finding the Fourth Proportional to 90,406.40, 135,609.53 and 23,851.67

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Solution

The fourth proportional to 90,406.40, 135,609.53 and 23,851.67 is: 35,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,406.40 : 135,609.53 = 23,851.67 : x
  2. Step 2: Convert to fraction form
    90,406.40/135,609.53 = 23,851.67/x
  3. Step 3: Cross multiply
    90,406.40x = 135,609.53 × 23,851.67
  4. Step 4: Simplify right side
    90,406.40x = 3,234,512,961.11
  5. Step 5: Solve for x
    x = 3,234,512,961.11/90,406.40
  6. Step 6: Final answer
    x = 35,777.48

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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.