Home / 57,083.03-78,772.64-31,590.47

Finding the Fourth Proportional to 57,083.03, 78,772.64 and 31,590.47

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Solution

The fourth proportional to 57,083.03, 78,772.64 and 31,590.47 is: 43,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,083.03 : 78,772.64 = 31,590.47 : x
  2. Step 2: Convert to fraction form
    57,083.03/78,772.64 = 31,590.47/x
  3. Step 3: Cross multiply
    57,083.03x = 78,772.64 × 31,590.47
  4. Step 4: Simplify right side
    57,083.03x = 2,488,464,168.93
  5. Step 5: Solve for x
    x = 2,488,464,168.93/57,083.03
  6. Step 6: Final answer
    x = 43,593.77

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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.