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Finding the Fourth Proportional to 65,190.83, 90,127.86 and 48,168.22

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Solution

The fourth proportional to 65,190.83, 90,127.86 and 48,168.22 is: 66,593.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,190.83 : 90,127.86 = 48,168.22 : x
  2. Step 2: Convert to fraction form
    65,190.83/90,127.86 = 48,168.22/x
  3. Step 3: Cross multiply
    65,190.83x = 90,127.86 × 48,168.22
  4. Step 4: Simplify right side
    65,190.83x = 4,341,298,758.07
  5. Step 5: Solve for x
    x = 4,341,298,758.07/65,190.83
  6. Step 6: Final answer
    x = 66,593.71

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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.