Home / 51,042.60-76,418.10-39,281.40

Finding the Fourth Proportional to 51,042.60, 76,418.10 and 39,281.40

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Solution

The fourth proportional to 51,042.60, 76,418.10 and 39,281.40 is: 58,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.60 : 76,418.10 = 39,281.40 : x
  2. Step 2: Convert to fraction form
    51,042.60/76,418.10 = 39,281.40/x
  3. Step 3: Cross multiply
    51,042.60x = 76,418.10 × 39,281.40
  4. Step 4: Simplify right side
    51,042.60x = 3,001,809,953.34
  5. Step 5: Solve for x
    x = 3,001,809,953.34/51,042.60
  6. Step 6: Final answer
    x = 58,809.90

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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.