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Finding the Fourth Proportional to 90,606.95, 125,041.12 and 50,323.78

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Solution

The fourth proportional to 90,606.95, 125,041.12 and 50,323.78 is: 69,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,606.95 : 125,041.12 = 50,323.78 : x
  2. Step 2: Convert to fraction form
    90,606.95/125,041.12 = 50,323.78/x
  3. Step 3: Cross multiply
    90,606.95x = 125,041.12 × 50,323.78
  4. Step 4: Simplify right side
    90,606.95x = 6,292,541,844.33
  5. Step 5: Solve for x
    x = 6,292,541,844.33/90,606.95
  6. Step 6: Final answer
    x = 69,448.77

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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.