Home / 41,143.08-61,714.62-9,978.28

Finding the Fourth Proportional to 41,143.08, 61,714.62 and 9,978.28

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Solution

The fourth proportional to 41,143.08, 61,714.62 and 9,978.28 is: 14,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,143.08 : 61,714.62 = 9,978.28 : x
  2. Step 2: Convert to fraction form
    41,143.08/61,714.62 = 9,978.28/x
  3. Step 3: Cross multiply
    41,143.08x = 61,714.62 × 9,978.28
  4. Step 4: Simplify right side
    41,143.08x = 615,805,758.45
  5. Step 5: Solve for x
    x = 615,805,758.45/41,143.08
  6. Step 6: Final answer
    x = 14,967.42

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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.