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Finding the Fourth Proportional to 60,627.96, 90,938.70 and 21,184.20

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Solution

The fourth proportional to 60,627.96, 90,938.70 and 21,184.20 is: 31,775.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,627.96 : 90,938.70 = 21,184.20 : x
  2. Step 2: Convert to fraction form
    60,627.96/90,938.70 = 21,184.20/x
  3. Step 3: Cross multiply
    60,627.96x = 90,938.70 × 21,184.20
  4. Step 4: Simplify right side
    60,627.96x = 1,926,463,608.54
  5. Step 5: Solve for x
    x = 1,926,463,608.54/60,627.96
  6. Step 6: Final answer
    x = 31,775.17

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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.