Home / 66,432.43-91,647.94-42,220.46

Finding the Fourth Proportional to 66,432.43, 91,647.94 and 42,220.46

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Solution

The fourth proportional to 66,432.43, 91,647.94 and 42,220.46 is: 58,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.43 : 91,647.94 = 42,220.46 : x
  2. Step 2: Convert to fraction form
    66,432.43/91,647.94 = 42,220.46/x
  3. Step 3: Cross multiply
    66,432.43x = 91,647.94 × 42,220.46
  4. Step 4: Simplify right side
    66,432.43x = 3,869,418,533.48
  5. Step 5: Solve for x
    x = 3,869,418,533.48/66,432.43
  6. Step 6: Final answer
    x = 58,245.93

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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.