Home / 57,083.49-78,775.29-31,590.93

Finding the Fourth Proportional to 57,083.49, 78,775.29 and 31,590.93

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Solution

The fourth proportional to 57,083.49, 78,775.29 and 31,590.93 is: 43,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,083.49 : 78,775.29 = 31,590.93 : x
  2. Step 2: Convert to fraction form
    57,083.49/78,775.29 = 31,590.93/x
  3. Step 3: Cross multiply
    57,083.49x = 78,775.29 × 31,590.93
  4. Step 4: Simplify right side
    57,083.49x = 2,488,584,672.12
  5. Step 5: Solve for x
    x = 2,488,584,672.12/57,083.49
  6. Step 6: Final answer
    x = 43,595.52

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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.