Home / 56,406.72-84,617.34-18,950.64

Finding the Fourth Proportional to 56,406.72, 84,617.34 and 18,950.64

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Solution

The fourth proportional to 56,406.72, 84,617.34 and 18,950.64 is: 28,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,406.72 : 84,617.34 = 18,950.64 : x
  2. Step 2: Convert to fraction form
    56,406.72/84,617.34 = 18,950.64/x
  3. Step 3: Cross multiply
    56,406.72x = 84,617.34 × 18,950.64
  4. Step 4: Simplify right side
    56,406.72x = 1,603,552,748.10
  5. Step 5: Solve for x
    x = 1,603,552,748.10/56,406.72
  6. Step 6: Final answer
    x = 28,428.40

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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.