Home / 66,175.20-99,207-28,707.06

Finding the Fourth Proportional to 66,175.20, 99,207 and 28,707.06

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Solution

The fourth proportional to 66,175.20, 99,207 and 28,707.06 is: 43,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,175.20 : 99,207 = 28,707.06 : x
  2. Step 2: Convert to fraction form
    66,175.20/99,207 = 28,707.06/x
  3. Step 3: Cross multiply
    66,175.20x = 99,207 × 28,707.06
  4. Step 4: Simplify right side
    66,175.20x = 2,847,941,301.42
  5. Step 5: Solve for x
    x = 2,847,941,301.42/66,175.20
  6. Step 6: Final answer
    x = 43,036.38

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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.