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Finding the Fourth Proportional to 55,890, 77,089.14 and 36,763.74

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Solution

The fourth proportional to 55,890, 77,089.14 and 36,763.74 is: 50,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,890 : 77,089.14 = 36,763.74 : x
  2. Step 2: Convert to fraction form
    55,890/77,089.14 = 36,763.74/x
  3. Step 3: Cross multiply
    55,890x = 77,089.14 × 36,763.74
  4. Step 4: Simplify right side
    55,890x = 2,834,085,099.78
  5. Step 5: Solve for x
    x = 2,834,085,099.78/55,890
  6. Step 6: Final answer
    x = 50,708.27

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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.