Home / 66,100.55-99,167.21-30,999.20

Finding the Fourth Proportional to 66,100.55, 99,167.21 and 30,999.20

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Solution

The fourth proportional to 66,100.55, 99,167.21 and 30,999.20 is: 46,506.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100.55 : 99,167.21 = 30,999.20 : x
  2. Step 2: Convert to fraction form
    66,100.55/99,167.21 = 30,999.20/x
  3. Step 3: Cross multiply
    66,100.55x = 99,167.21 × 30,999.20
  4. Step 4: Simplify right side
    66,100.55x = 3,074,103,525.40
  5. Step 5: Solve for x
    x = 3,074,103,525.40/66,100.55
  6. Step 6: Final answer
    x = 46,506.48

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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.