Home / 76,938.38-106,192.65-45,117.53

Finding the Fourth Proportional to 76,938.38, 106,192.65 and 45,117.53

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Solution

The fourth proportional to 76,938.38, 106,192.65 and 45,117.53 is: 62,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,938.38 : 106,192.65 = 45,117.53 : x
  2. Step 2: Convert to fraction form
    76,938.38/106,192.65 = 45,117.53/x
  3. Step 3: Cross multiply
    76,938.38x = 106,192.65 × 45,117.53
  4. Step 4: Simplify right side
    76,938.38x = 4,791,150,072.15
  5. Step 5: Solve for x
    x = 4,791,150,072.15/76,938.38
  6. Step 6: Final answer
    x = 62,272.56

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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.