Home / 65,723.13-90,697.86-35,915.13

Finding the Fourth Proportional to 65,723.13, 90,697.86 and 35,915.13

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Solution

The fourth proportional to 65,723.13, 90,697.86 and 35,915.13 is: 49,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,723.13 : 90,697.86 = 35,915.13 : x
  2. Step 2: Convert to fraction form
    65,723.13/90,697.86 = 35,915.13/x
  3. Step 3: Cross multiply
    65,723.13x = 90,697.86 × 35,915.13
  4. Step 4: Simplify right side
    65,723.13x = 3,257,425,432.62
  5. Step 5: Solve for x
    x = 3,257,425,432.62/65,723.13
  6. Step 6: Final answer
    x = 49,562.85

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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.