Home / 43,288.57-64,935.32-12,126.25

Finding the Fourth Proportional to 43,288.57, 64,935.32 and 12,126.25

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Solution

The fourth proportional to 43,288.57, 64,935.32 and 12,126.25 is: 18,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,288.57 : 64,935.32 = 12,126.25 : x
  2. Step 2: Convert to fraction form
    43,288.57/64,935.32 = 12,126.25/x
  3. Step 3: Cross multiply
    43,288.57x = 64,935.32 × 12,126.25
  4. Step 4: Simplify right side
    43,288.57x = 787,421,924.15
  5. Step 5: Solve for x
    x = 787,421,924.15/43,288.57
  6. Step 6: Final answer
    x = 18,190.07

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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.