Home / 51,072.40-76,666.20-39,437.20

Finding the Fourth Proportional to 51,072.40, 76,666.20 and 39,437.20

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Solution

The fourth proportional to 51,072.40, 76,666.20 and 39,437.20 is: 59,200.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,072.40 : 76,666.20 = 39,437.20 : x
  2. Step 2: Convert to fraction form
    51,072.40/76,666.20 = 39,437.20/x
  3. Step 3: Cross multiply
    51,072.40x = 76,666.20 × 39,437.20
  4. Step 4: Simplify right side
    51,072.40x = 3,023,500,262.64
  5. Step 5: Solve for x
    x = 3,023,500,262.64/51,072.40
  6. Step 6: Final answer
    x = 59,200.28

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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.