Home / 56,577.97-78,078.90-31,085.92

Finding the Fourth Proportional to 56,577.97, 78,078.90 and 31,085.92

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Solution

The fourth proportional to 56,577.97, 78,078.90 and 31,085.92 is: 42,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,577.97 : 78,078.90 = 31,085.92 : x
  2. Step 2: Convert to fraction form
    56,577.97/78,078.90 = 31,085.92/x
  3. Step 3: Cross multiply
    56,577.97x = 78,078.90 × 31,085.92
  4. Step 4: Simplify right side
    56,577.97x = 2,427,154,390.97
  5. Step 5: Solve for x
    x = 2,427,154,390.97/56,577.97
  6. Step 6: Final answer
    x = 42,899.29

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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.