Home / 76,637.60-114,748.68-39,623.84

Finding the Fourth Proportional to 76,637.60, 114,748.68 and 39,623.84

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Solution

The fourth proportional to 76,637.60, 114,748.68 and 39,623.84 is: 59,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,637.60 : 114,748.68 = 39,623.84 : x
  2. Step 2: Convert to fraction form
    76,637.60/114,748.68 = 39,623.84/x
  3. Step 3: Cross multiply
    76,637.60x = 114,748.68 × 39,623.84
  4. Step 4: Simplify right side
    76,637.60x = 4,546,783,336.53
  5. Step 5: Solve for x
    x = 4,546,783,336.53/76,637.60
  6. Step 6: Final answer
    x = 59,328.36

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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.