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Finding the Fourth Proportional to 60,543.78, 83,553.12 and 50,455.32

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Solution

The fourth proportional to 60,543.78, 83,553.12 and 50,455.32 is: 69,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,543.78 : 83,553.12 = 50,455.32 : x
  2. Step 2: Convert to fraction form
    60,543.78/83,553.12 = 50,455.32/x
  3. Step 3: Cross multiply
    60,543.78x = 83,553.12 × 50,455.32
  4. Step 4: Simplify right side
    60,543.78x = 4,215,699,406.60
  5. Step 5: Solve for x
    x = 4,215,699,406.60/60,543.78
  6. Step 6: Final answer
    x = 69,630.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.