Home / 66,319.23-99,412.31-30,805.48

Finding the Fourth Proportional to 66,319.23, 99,412.31 and 30,805.48

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Solution

The fourth proportional to 66,319.23, 99,412.31 and 30,805.48 is: 46,177.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,319.23 : 99,412.31 = 30,805.48 : x
  2. Step 2: Convert to fraction form
    66,319.23/99,412.31 = 30,805.48/x
  3. Step 3: Cross multiply
    66,319.23x = 99,412.31 × 30,805.48
  4. Step 4: Simplify right side
    66,319.23x = 3,062,443,927.46
  5. Step 5: Solve for x
    x = 3,062,443,927.46/66,319.23
  6. Step 6: Final answer
    x = 46,177.31

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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.