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Finding the Fourth Proportional to 64,235.80, 96,353.70 and 40,616.20

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Solution

The fourth proportional to 64,235.80, 96,353.70 and 40,616.20 is: 60,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,235.80 : 96,353.70 = 40,616.20 : x
  2. Step 2: Convert to fraction form
    64,235.80/96,353.70 = 40,616.20/x
  3. Step 3: Cross multiply
    64,235.80x = 96,353.70 × 40,616.20
  4. Step 4: Simplify right side
    64,235.80x = 3,913,521,149.94
  5. Step 5: Solve for x
    x = 3,913,521,149.94/64,235.80
  6. Step 6: Final answer
    x = 60,924.30

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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.