Home / 43,140.10-64,746.60-16,863.70

Finding the Fourth Proportional to 43,140.10, 64,746.60 and 16,863.70

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Solution

The fourth proportional to 43,140.10, 64,746.60 and 16,863.70 is: 25,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.10 : 64,746.60 = 16,863.70 : x
  2. Step 2: Convert to fraction form
    43,140.10/64,746.60 = 16,863.70/x
  3. Step 3: Cross multiply
    43,140.10x = 64,746.60 × 16,863.70
  4. Step 4: Simplify right side
    43,140.10x = 1,091,867,238.42
  5. Step 5: Solve for x
    x = 1,091,867,238.42/43,140.10
  6. Step 6: Final answer
    x = 25,309.80

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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.