Home / 51,705.28-77,558.20-18,426.64

Finding the Fourth Proportional to 51,705.28, 77,558.20 and 18,426.64

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Solution

The fourth proportional to 51,705.28, 77,558.20 and 18,426.64 is: 27,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,705.28 : 77,558.20 = 18,426.64 : x
  2. Step 2: Convert to fraction form
    51,705.28/77,558.20 = 18,426.64/x
  3. Step 3: Cross multiply
    51,705.28x = 77,558.20 × 18,426.64
  4. Step 4: Simplify right side
    51,705.28x = 1,429,137,030.45
  5. Step 5: Solve for x
    x = 1,429,137,030.45/51,705.28
  6. Step 6: Final answer
    x = 27,640.06

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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.