Home / 76,802.64-115,124.76-29,406.57

Finding the Fourth Proportional to 76,802.64, 115,124.76 and 29,406.57

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Solution

The fourth proportional to 76,802.64, 115,124.76 and 29,406.57 is: 44,079.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,802.64 : 115,124.76 = 29,406.57 : x
  2. Step 2: Convert to fraction form
    76,802.64/115,124.76 = 29,406.57/x
  3. Step 3: Cross multiply
    76,802.64x = 115,124.76 × 29,406.57
  4. Step 4: Simplify right side
    76,802.64x = 3,385,424,313.67
  5. Step 5: Solve for x
    x = 3,385,424,313.67/76,802.64
  6. Step 6: Final answer
    x = 44,079.53

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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.