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Finding the Fourth Proportional to 60,813.86, 91,220.78 and 21,361.93

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Solution

The fourth proportional to 60,813.86, 91,220.78 and 21,361.93 is: 32,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,813.86 : 91,220.78 = 21,361.93 : x
  2. Step 2: Convert to fraction form
    60,813.86/91,220.78 = 21,361.93/x
  3. Step 3: Cross multiply
    60,813.86x = 91,220.78 × 21,361.93
  4. Step 4: Simplify right side
    60,813.86x = 1,948,651,742.26
  5. Step 5: Solve for x
    x = 1,948,651,742.26/60,813.86
  6. Step 6: Final answer
    x = 32,042.89

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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.