Home / 48,519-66,962.70-31,761.72

Finding the Fourth Proportional to 48,519, 66,962.70 and 31,761.72

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Solution

The fourth proportional to 48,519, 66,962.70 and 31,761.72 is: 43,835.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,519 : 66,962.70 = 31,761.72 : x
  2. Step 2: Convert to fraction form
    48,519/66,962.70 = 31,761.72/x
  3. Step 3: Cross multiply
    48,519x = 66,962.70 × 31,761.72
  4. Step 4: Simplify right side
    48,519x = 2,126,850,527.84
  5. Step 5: Solve for x
    x = 2,126,850,527.84/48,519
  6. Step 6: Final answer
    x = 43,835.42

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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.