Home / 43,275.60-64,864.80-18,311.40

Finding the Fourth Proportional to 43,275.60, 64,864.80 and 18,311.40

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Solution

The fourth proportional to 43,275.60, 64,864.80 and 18,311.40 is: 27,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,275.60 : 64,864.80 = 18,311.40 : x
  2. Step 2: Convert to fraction form
    43,275.60/64,864.80 = 18,311.40/x
  3. Step 3: Cross multiply
    43,275.60x = 64,864.80 × 18,311.40
  4. Step 4: Simplify right side
    43,275.60x = 1,187,765,298.72
  5. Step 5: Solve for x
    x = 1,187,765,298.72/43,275.60
  6. Step 6: Final answer
    x = 27,446.54

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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.