Home / 66,428.60-99,610.07-28,972.44

Finding the Fourth Proportional to 66,428.60, 99,610.07 and 28,972.44

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Solution

The fourth proportional to 66,428.60, 99,610.07 and 28,972.44 is: 43,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428.60 : 99,610.07 = 28,972.44 : x
  2. Step 2: Convert to fraction form
    66,428.60/99,610.07 = 28,972.44/x
  3. Step 3: Cross multiply
    66,428.60x = 99,610.07 × 28,972.44
  4. Step 4: Simplify right side
    66,428.60x = 2,885,946,631.61
  5. Step 5: Solve for x
    x = 2,885,946,631.61/66,428.60
  6. Step 6: Final answer
    x = 43,444.34

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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.