Home / 65,242.20-90,031.23-36,948.09

Finding the Fourth Proportional to 65,242.20, 90,031.23 and 36,948.09

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Solution

The fourth proportional to 65,242.20, 90,031.23 and 36,948.09 is: 50,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,242.20 : 90,031.23 = 36,948.09 : x
  2. Step 2: Convert to fraction form
    65,242.20/90,031.23 = 36,948.09/x
  3. Step 3: Cross multiply
    65,242.20x = 90,031.23 × 36,948.09
  4. Step 4: Simplify right side
    65,242.20x = 3,326,481,988.85
  5. Step 5: Solve for x
    x = 3,326,481,988.85/65,242.20
  6. Step 6: Final answer
    x = 50,986.66

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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.