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Finding the Fourth Proportional to 90,754.63, 125,231.80 and 50,461.89

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Solution

The fourth proportional to 90,754.63, 125,231.80 and 50,461.89 is: 69,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,754.63 : 125,231.80 = 50,461.89 : x
  2. Step 2: Convert to fraction form
    90,754.63/125,231.80 = 50,461.89/x
  3. Step 3: Cross multiply
    90,754.63x = 125,231.80 × 50,461.89
  4. Step 4: Simplify right side
    90,754.63x = 6,319,432,673.02
  5. Step 5: Solve for x
    x = 6,319,432,673.02/90,754.63
  6. Step 6: Final answer
    x = 69,632.07

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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.