Home / 60,499.86-90,759.47-21,068.18

Finding the Fourth Proportional to 60,499.86, 90,759.47 and 21,068.18

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Solution

The fourth proportional to 60,499.86, 90,759.47 and 21,068.18 is: 31,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,499.86 : 90,759.47 = 21,068.18 : x
  2. Step 2: Convert to fraction form
    60,499.86/90,759.47 = 21,068.18/x
  3. Step 3: Cross multiply
    60,499.86x = 90,759.47 × 21,068.18
  4. Step 4: Simplify right side
    60,499.86x = 1,912,136,850.66
  5. Step 5: Solve for x
    x = 1,912,136,850.66/60,499.86
  6. Step 6: Final answer
    x = 31,605.64

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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.