Home / 75,515.60-113,287.06-31,117.66

Finding the Fourth Proportional to 75,515.60, 113,287.06 and 31,117.66

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Solution

The fourth proportional to 75,515.60, 113,287.06 and 31,117.66 is: 46,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,515.60 : 113,287.06 = 31,117.66 : x
  2. Step 2: Convert to fraction form
    75,515.60/113,287.06 = 31,117.66/x
  3. Step 3: Cross multiply
    75,515.60x = 113,287.06 × 31,117.66
  4. Step 4: Simplify right side
    75,515.60x = 3,525,228,215.48
  5. Step 5: Solve for x
    x = 3,525,228,215.48/75,515.60
  6. Step 6: Final answer
    x = 46,682.12

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1.5x scale

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.