Home / 76,938.74-106,193.17-45,117.89

Finding the Fourth Proportional to 76,938.74, 106,193.17 and 45,117.89

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Solution

The fourth proportional to 76,938.74, 106,193.17 and 45,117.89 is: 62,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,938.74 : 106,193.17 = 45,117.89 : x
  2. Step 2: Convert to fraction form
    76,938.74/106,193.17 = 45,117.89/x
  3. Step 3: Cross multiply
    76,938.74x = 106,193.17 × 45,117.89
  4. Step 4: Simplify right side
    76,938.74x = 4,791,211,119.05
  5. Step 5: Solve for x
    x = 4,791,211,119.05/76,938.74
  6. Step 6: Final answer
    x = 62,273.07

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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.