Home / 83,122.64-114,709.37-47,312.65

Finding the Fourth Proportional to 83,122.64, 114,709.37 and 47,312.65

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Solution

The fourth proportional to 83,122.64, 114,709.37 and 47,312.65 is: 65,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,122.64 : 114,709.37 = 47,312.65 : x
  2. Step 2: Convert to fraction form
    83,122.64/114,709.37 = 47,312.65/x
  3. Step 3: Cross multiply
    83,122.64x = 114,709.37 × 47,312.65
  4. Step 4: Simplify right side
    83,122.64x = 5,427,204,274.53
  5. Step 5: Solve for x
    x = 5,427,204,274.53/83,122.64
  6. Step 6: Final answer
    x = 65,291.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.