Home / 66,728.34-99,988.83-42,052.50

Finding the Fourth Proportional to 66,728.34, 99,988.83 and 42,052.50

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Solution

The fourth proportional to 66,728.34, 99,988.83 and 42,052.50 is: 63,013.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,728.34 : 99,988.83 = 42,052.50 : x
  2. Step 2: Convert to fraction form
    66,728.34/99,988.83 = 42,052.50/x
  3. Step 3: Cross multiply
    66,728.34x = 99,988.83 × 42,052.50
  4. Step 4: Simplify right side
    66,728.34x = 4,204,780,273.58
  5. Step 5: Solve for x
    x = 4,204,780,273.58/66,728.34
  6. Step 6: Final answer
    x = 63,013.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.