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Finding the Fourth Proportional to 90,871.56, 125,344.40 and 58,647.33

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Solution

The fourth proportional to 90,871.56, 125,344.40 and 58,647.33 is: 80,895.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,871.56 : 125,344.40 = 58,647.33 : x
  2. Step 2: Convert to fraction form
    90,871.56/125,344.40 = 58,647.33/x
  3. Step 3: Cross multiply
    90,871.56x = 125,344.40 × 58,647.33
  4. Step 4: Simplify right side
    90,871.56x = 7,351,114,097.22
  5. Step 5: Solve for x
    x = 7,351,114,097.22/90,871.56
  6. Step 6: Final answer
    x = 80,895.65

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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.