Home / 57,037.14-78,711.48-31,886.64

Finding the Fourth Proportional to 57,037.14, 78,711.48 and 31,886.64

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Solution

The fourth proportional to 57,037.14, 78,711.48 and 31,886.64 is: 44,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.14 : 78,711.48 = 31,886.64 : x
  2. Step 2: Convert to fraction form
    57,037.14/78,711.48 = 31,886.64/x
  3. Step 3: Cross multiply
    57,037.14x = 78,711.48 × 31,886.64
  4. Step 4: Simplify right side
    57,037.14x = 2,509,844,626.63
  5. Step 5: Solve for x
    x = 2,509,844,626.63/57,037.14
  6. Step 6: Final answer
    x = 44,003.69

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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.