Home / 66,432.63-91,625.19-42,561.54

Finding the Fourth Proportional to 66,432.63, 91,625.19 and 42,561.54

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Solution

The fourth proportional to 66,432.63, 91,625.19 and 42,561.54 is: 58,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.63 : 91,625.19 = 42,561.54 : x
  2. Step 2: Convert to fraction form
    66,432.63/91,625.19 = 42,561.54/x
  3. Step 3: Cross multiply
    66,432.63x = 91,625.19 × 42,561.54
  4. Step 4: Simplify right side
    66,432.63x = 3,899,709,189.19
  5. Step 5: Solve for x
    x = 3,899,709,189.19/66,432.63
  6. Step 6: Final answer
    x = 58,701.71

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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.