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Finding the Fourth Proportional to 76,265.86, 105,250.76 and 43,988.48

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Solution

The fourth proportional to 76,265.86, 105,250.76 and 43,988.48 is: 60,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.86 : 105,250.76 = 43,988.48 : x
  2. Step 2: Convert to fraction form
    76,265.86/105,250.76 = 43,988.48/x
  3. Step 3: Cross multiply
    76,265.86x = 105,250.76 × 43,988.48
  4. Step 4: Simplify right side
    76,265.86x = 4,629,820,951.24
  5. Step 5: Solve for x
    x = 4,629,820,951.24/76,265.86
  6. Step 6: Final answer
    x = 60,706.34

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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.