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Finding the Fourth Proportional to 90,655.80, 125,097.17 and 50,368.83

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Solution

The fourth proportional to 90,655.80, 125,097.17 and 50,368.83 is: 69,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,655.80 : 125,097.17 = 50,368.83 : x
  2. Step 2: Convert to fraction form
    90,655.80/125,097.17 = 50,368.83/x
  3. Step 3: Cross multiply
    90,655.80x = 125,097.17 × 50,368.83
  4. Step 4: Simplify right side
    90,655.80x = 6,300,998,089.21
  5. Step 5: Solve for x
    x = 6,300,998,089.21/90,655.80
  6. Step 6: Final answer
    x = 69,504.63

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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.