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Finding the Fourth Proportional to 45,988.50, 68,925.04 and 19,662.30

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Solution

The fourth proportional to 45,988.50, 68,925.04 and 19,662.30 is: 29,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,988.50 : 68,925.04 = 19,662.30 : x
  2. Step 2: Convert to fraction form
    45,988.50/68,925.04 = 19,662.30/x
  3. Step 3: Cross multiply
    45,988.50x = 68,925.04 × 19,662.30
  4. Step 4: Simplify right side
    45,988.50x = 1,355,224,813.99
  5. Step 5: Solve for x
    x = 1,355,224,813.99/45,988.50
  6. Step 6: Final answer
    x = 29,468.78

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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.