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Finding the Fourth Proportional to 60,349.96, 90,489.65 and 18,217.40

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Solution

The fourth proportional to 60,349.96, 90,489.65 and 18,217.40 is: 27,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,349.96 : 90,489.65 = 18,217.40 : x
  2. Step 2: Convert to fraction form
    60,349.96/90,489.65 = 18,217.40/x
  3. Step 3: Cross multiply
    60,349.96x = 90,489.65 × 18,217.40
  4. Step 4: Simplify right side
    60,349.96x = 1,648,486,285.05
  5. Step 5: Solve for x
    x = 1,648,486,285.05/60,349.96
  6. Step 6: Final answer
    x = 27,315.45

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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.