Home / 75,659.40-113,495.31-31,277.88

Finding the Fourth Proportional to 75,659.40, 113,495.31 and 31,277.88

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Solution

The fourth proportional to 75,659.40, 113,495.31 and 31,277.88 is: 46,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,659.40 : 113,495.31 = 31,277.88 : x
  2. Step 2: Convert to fraction form
    75,659.40/113,495.31 = 31,277.88/x
  3. Step 3: Cross multiply
    75,659.40x = 113,495.31 × 31,277.88
  4. Step 4: Simplify right side
    75,659.40x = 3,549,892,686.74
  5. Step 5: Solve for x
    x = 3,549,892,686.74/75,659.40
  6. Step 6: Final answer
    x = 46,919.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.