Home / 61,345.20-92,018.68-40,419.24

Finding the Fourth Proportional to 61,345.20, 92,018.68 and 40,419.24

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Solution

The fourth proportional to 61,345.20, 92,018.68 and 40,419.24 is: 60,629.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,345.20 : 92,018.68 = 40,419.24 : x
  2. Step 2: Convert to fraction form
    61,345.20/92,018.68 = 40,419.24/x
  3. Step 3: Cross multiply
    61,345.20x = 92,018.68 × 40,419.24
  4. Step 4: Simplify right side
    61,345.20x = 3,719,325,111.40
  5. Step 5: Solve for x
    x = 3,719,325,111.40/61,345.20
  6. Step 6: Final answer
    x = 60,629.44

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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.