Home / 57,005.74-78,667.68-31,855.24

Finding the Fourth Proportional to 57,005.74, 78,667.68 and 31,855.24

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Solution

The fourth proportional to 57,005.74, 78,667.68 and 31,855.24 is: 43,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.74 : 78,667.68 = 31,855.24 : x
  2. Step 2: Convert to fraction form
    57,005.74/78,667.68 = 31,855.24/x
  3. Step 3: Cross multiply
    57,005.74x = 78,667.68 × 31,855.24
  4. Step 4: Simplify right side
    57,005.74x = 2,505,977,826.64
  5. Step 5: Solve for x
    x = 2,505,977,826.64/57,005.74
  6. Step 6: Final answer
    x = 43,960.10

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1.5x scale

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.