Home / 60,665.85-90,994.34-20,681.53

Finding the Fourth Proportional to 60,665.85, 90,994.34 and 20,681.53

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Solution

The fourth proportional to 60,665.85, 90,994.34 and 20,681.53 is: 31,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,665.85 : 90,994.34 = 20,681.53 : x
  2. Step 2: Convert to fraction form
    60,665.85/90,994.34 = 20,681.53/x
  3. Step 3: Cross multiply
    60,665.85x = 90,994.34 × 20,681.53
  4. Step 4: Simplify right side
    60,665.85x = 1,881,901,996.76
  5. Step 5: Solve for x
    x = 1,881,901,996.76/60,665.85
  6. Step 6: Final answer
    x = 31,020.78

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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.