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Finding the Fourth Proportional to 65,904.80, 98,857.20 and 48,408.80

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Solution

The fourth proportional to 65,904.80, 98,857.20 and 48,408.80 is: 72,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.80 : 98,857.20 = 48,408.80 : x
  2. Step 2: Convert to fraction form
    65,904.80/98,857.20 = 48,408.80/x
  3. Step 3: Cross multiply
    65,904.80x = 98,857.20 × 48,408.80
  4. Step 4: Simplify right side
    65,904.80x = 4,785,558,423.36
  5. Step 5: Solve for x
    x = 4,785,558,423.36/65,904.80
  6. Step 6: Final answer
    x = 72,613.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.