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Finding the Fourth Proportional to 76,167.86, 105,221.14 and 60,834.28

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Solution

The fourth proportional to 76,167.86, 105,221.14 and 60,834.28 is: 84,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,167.86 : 105,221.14 = 60,834.28 : x
  2. Step 2: Convert to fraction form
    76,167.86/105,221.14 = 60,834.28/x
  3. Step 3: Cross multiply
    76,167.86x = 105,221.14 × 60,834.28
  4. Step 4: Simplify right side
    76,167.86x = 6,401,052,292.68
  5. Step 5: Solve for x
    x = 6,401,052,292.68/76,167.86
  6. Step 6: Final answer
    x = 84,038.76

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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.