Home / 77,136.48-115,665.84-37,634.40

Finding the Fourth Proportional to 77,136.48, 115,665.84 and 37,634.40

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Solution

The fourth proportional to 77,136.48, 115,665.84 and 37,634.40 is: 56,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,136.48 : 115,665.84 = 37,634.40 : x
  2. Step 2: Convert to fraction form
    77,136.48/115,665.84 = 37,634.40/x
  3. Step 3: Cross multiply
    77,136.48x = 115,665.84 × 37,634.40
  4. Step 4: Simplify right side
    77,136.48x = 4,353,014,488.90
  5. Step 5: Solve for x
    x = 4,353,014,488.90/77,136.48
  6. Step 6: Final answer
    x = 56,432.63

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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.