Home / 65,031.88-89,753.53-38,189.09

Finding the Fourth Proportional to 65,031.88, 89,753.53 and 38,189.09

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Solution

The fourth proportional to 65,031.88, 89,753.53 and 38,189.09 is: 52,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,031.88 : 89,753.53 = 38,189.09 : x
  2. Step 2: Convert to fraction form
    65,031.88/89,753.53 = 38,189.09/x
  3. Step 3: Cross multiply
    65,031.88x = 89,753.53 × 38,189.09
  4. Step 4: Simplify right side
    65,031.88x = 3,427,605,634.99
  5. Step 5: Solve for x
    x = 3,427,605,634.99/65,031.88
  6. Step 6: Final answer
    x = 52,706.54

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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.