Home / 65,549.16-90,432.18-40,354.92

Finding the Fourth Proportional to 65,549.16, 90,432.18 and 40,354.92

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Solution

The fourth proportional to 65,549.16, 90,432.18 and 40,354.92 is: 55,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,549.16 : 90,432.18 = 40,354.92 : x
  2. Step 2: Convert to fraction form
    65,549.16/90,432.18 = 40,354.92/x
  3. Step 3: Cross multiply
    65,549.16x = 90,432.18 × 40,354.92
  4. Step 4: Simplify right side
    65,549.16x = 3,649,383,389.33
  5. Step 5: Solve for x
    x = 3,649,383,389.33/65,549.16
  6. Step 6: Final answer
    x = 55,673.99

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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.