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Finding the Fourth Proportional to 60,318.81, 90,478.88 and 18,199.26

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Solution

The fourth proportional to 60,318.81, 90,478.88 and 18,199.26 is: 27,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,318.81 : 90,478.88 = 18,199.26 : x
  2. Step 2: Convert to fraction form
    60,318.81/90,478.88 = 18,199.26/x
  3. Step 3: Cross multiply
    60,318.81x = 90,478.88 × 18,199.26
  4. Step 4: Simplify right side
    60,318.81x = 1,646,648,570.63
  5. Step 5: Solve for x
    x = 1,646,648,570.63/60,318.81
  6. Step 6: Final answer
    x = 27,299.09

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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.