Home / 65,297.07-90,160.86-50,165.76

Finding the Fourth Proportional to 65,297.07, 90,160.86 and 50,165.76

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Solution

The fourth proportional to 65,297.07, 90,160.86 and 50,165.76 is: 69,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,297.07 : 90,160.86 = 50,165.76 : x
  2. Step 2: Convert to fraction form
    65,297.07/90,160.86 = 50,165.76/x
  3. Step 3: Cross multiply
    65,297.07x = 90,160.86 × 50,165.76
  4. Step 4: Simplify right side
    65,297.07x = 4,522,988,064.15
  5. Step 5: Solve for x
    x = 4,522,988,064.15/65,297.07
  6. Step 6: Final answer
    x = 69,267.86

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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.