Home / 90,021.28-135,031.96-23,461.24

Finding the Fourth Proportional to 90,021.28, 135,031.96 and 23,461.24

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Solution

The fourth proportional to 90,021.28, 135,031.96 and 23,461.24 is: 35,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,021.28 : 135,031.96 = 23,461.24 : x
  2. Step 2: Convert to fraction form
    90,021.28/135,031.96 = 23,461.24/x
  3. Step 3: Cross multiply
    90,021.28x = 135,031.96 × 23,461.24
  4. Step 4: Simplify right side
    90,021.28x = 3,168,017,221.23
  5. Step 5: Solve for x
    x = 3,168,017,221.23/90,021.28
  6. Step 6: Final answer
    x = 35,191.87

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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.