Home / 65,391.17-90,251.55-38,532.11

Finding the Fourth Proportional to 65,391.17, 90,251.55 and 38,532.11

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Solution

The fourth proportional to 65,391.17, 90,251.55 and 38,532.11 is: 53,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,391.17 : 90,251.55 = 38,532.11 : x
  2. Step 2: Convert to fraction form
    65,391.17/90,251.55 = 38,532.11/x
  3. Step 3: Cross multiply
    65,391.17x = 90,251.55 × 38,532.11
  4. Step 4: Simplify right side
    65,391.17x = 3,477,582,201.01
  5. Step 5: Solve for x
    x = 3,477,582,201.01/65,391.17
  6. Step 6: Final answer
    x = 53,181.22

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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.