Home / 78,733.46-118,065.57-28,800.61

Finding the Fourth Proportional to 78,733.46, 118,065.57 and 28,800.61

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Solution

The fourth proportional to 78,733.46, 118,065.57 and 28,800.61 is: 43,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733.46 : 118,065.57 = 28,800.61 : x
  2. Step 2: Convert to fraction form
    78,733.46/118,065.57 = 28,800.61/x
  3. Step 3: Cross multiply
    78,733.46x = 118,065.57 × 28,800.61
  4. Step 4: Simplify right side
    78,733.46x = 3,400,360,032.83
  5. Step 5: Solve for x
    x = 3,400,360,032.83/78,733.46
  6. Step 6: Final answer
    x = 43,188.24

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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.