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Finding the Fourth Proportional to 96,618.80, 145,000.20 and 49,847.60

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Solution

The fourth proportional to 96,618.80, 145,000.20 and 49,847.60 is: 74,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,618.80 : 145,000.20 = 49,847.60 : x
  2. Step 2: Convert to fraction form
    96,618.80/145,000.20 = 49,847.60/x
  3. Step 3: Cross multiply
    96,618.80x = 145,000.20 × 49,847.60
  4. Step 4: Simplify right side
    96,618.80x = 7,227,911,969.52
  5. Step 5: Solve for x
    x = 7,227,911,969.52/96,618.80
  6. Step 6: Final answer
    x = 74,808.55

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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.