Home / 66,331.38-99,430.56-30,817.68

Finding the Fourth Proportional to 66,331.38, 99,430.56 and 30,817.68

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Solution

The fourth proportional to 66,331.38, 99,430.56 and 30,817.68 is: 46,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,331.38 : 99,430.56 = 30,817.68 : x
  2. Step 2: Convert to fraction form
    66,331.38/99,430.56 = 30,817.68/x
  3. Step 3: Cross multiply
    66,331.38x = 99,430.56 × 30,817.68
  4. Step 4: Simplify right side
    66,331.38x = 3,064,219,180.30
  5. Step 5: Solve for x
    x = 3,064,219,180.30/66,331.38
  6. Step 6: Final answer
    x = 46,195.62

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1.5x scale

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.