Home / 56,314.20-84,490.08-18,878

Finding the Fourth Proportional to 56,314.20, 84,490.08 and 18,878

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Solution

The fourth proportional to 56,314.20, 84,490.08 and 18,878 is: 28,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,314.20 : 84,490.08 = 18,878 : x
  2. Step 2: Convert to fraction form
    56,314.20/84,490.08 = 18,878/x
  3. Step 3: Cross multiply
    56,314.20x = 84,490.08 × 18,878
  4. Step 4: Simplify right side
    56,314.20x = 1,595,003,730.24
  5. Step 5: Solve for x
    x = 1,595,003,730.24/56,314.20
  6. Step 6: Final answer
    x = 28,323.30

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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.