Home / 51,665.66-71,290.11-30,442.04

Finding the Fourth Proportional to 51,665.66, 71,290.11 and 30,442.04

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Solution

The fourth proportional to 51,665.66, 71,290.11 and 30,442.04 is: 42,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,665.66 : 71,290.11 = 30,442.04 : x
  2. Step 2: Convert to fraction form
    51,665.66/71,290.11 = 30,442.04/x
  3. Step 3: Cross multiply
    51,665.66x = 71,290.11 × 30,442.04
  4. Step 4: Simplify right side
    51,665.66x = 2,170,216,137.93
  5. Step 5: Solve for x
    x = 2,170,216,137.93/51,665.66
  6. Step 6: Final answer
    x = 42,005.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.