Home / 76,239.21-114,403.77-31,862.55

Finding the Fourth Proportional to 76,239.21, 114,403.77 and 31,862.55

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Solution

The fourth proportional to 76,239.21, 114,403.77 and 31,862.55 is: 47,812.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,239.21 : 114,403.77 = 31,862.55 : x
  2. Step 2: Convert to fraction form
    76,239.21/114,403.77 = 31,862.55/x
  3. Step 3: Cross multiply
    76,239.21x = 114,403.77 × 31,862.55
  4. Step 4: Simplify right side
    76,239.21x = 3,645,195,841.81
  5. Step 5: Solve for x
    x = 3,645,195,841.81/76,239.21
  6. Step 6: Final answer
    x = 47,812.61

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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.