Home / 76,528.47-105,630.12-49,669.41

Finding the Fourth Proportional to 76,528.47, 105,630.12 and 49,669.41

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Solution

The fourth proportional to 76,528.47, 105,630.12 and 49,669.41 is: 68,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,528.47 : 105,630.12 = 49,669.41 : x
  2. Step 2: Convert to fraction form
    76,528.47/105,630.12 = 49,669.41/x
  3. Step 3: Cross multiply
    76,528.47x = 105,630.12 × 49,669.41
  4. Step 4: Simplify right side
    76,528.47x = 5,246,585,738.63
  5. Step 5: Solve for x
    x = 5,246,585,738.63/76,528.47
  6. Step 6: Final answer
    x = 68,557.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.