Home / 77,577.72-107,032.64-47,347.90

Finding the Fourth Proportional to 77,577.72, 107,032.64 and 47,347.90

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Solution

The fourth proportional to 77,577.72, 107,032.64 and 47,347.90 is: 65,325.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,577.72 : 107,032.64 = 47,347.90 : x
  2. Step 2: Convert to fraction form
    77,577.72/107,032.64 = 47,347.90/x
  3. Step 3: Cross multiply
    77,577.72x = 107,032.64 × 47,347.90
  4. Step 4: Simplify right side
    77,577.72x = 5,067,770,735.46
  5. Step 5: Solve for x
    x = 5,067,770,735.46/77,577.72
  6. Step 6: Final answer
    x = 65,325.08

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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.