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Finding the Fourth Proportional to 45,294.70, 67,637.04 and 36,991.20

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Solution

The fourth proportional to 45,294.70, 67,637.04 and 36,991.20 is: 55,237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,294.70 : 67,637.04 = 36,991.20 : x
  2. Step 2: Convert to fraction form
    45,294.70/67,637.04 = 36,991.20/x
  3. Step 3: Cross multiply
    45,294.70x = 67,637.04 × 36,991.20
  4. Step 4: Simplify right side
    45,294.70x = 2,501,975,274.05
  5. Step 5: Solve for x
    x = 2,501,975,274.05/45,294.70
  6. Step 6: Final answer
    x = 55,237.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.