Home / 66,019.23-99,045.43-30,505.66

Finding the Fourth Proportional to 66,019.23, 99,045.43 and 30,505.66

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Solution

The fourth proportional to 66,019.23, 99,045.43 and 30,505.66 is: 45,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,019.23 : 99,045.43 = 30,505.66 : x
  2. Step 2: Convert to fraction form
    66,019.23/99,045.43 = 30,505.66/x
  3. Step 3: Cross multiply
    66,019.23x = 99,045.43 × 30,505.66
  4. Step 4: Simplify right side
    66,019.23x = 3,021,445,888.26
  5. Step 5: Solve for x
    x = 3,021,445,888.26/66,019.23
  6. Step 6: Final answer
    x = 45,766.15

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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.