Home / 78,730.32-118,163.72-41,316.83

Finding the Fourth Proportional to 78,730.32, 118,163.72 and 41,316.83

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Solution

The fourth proportional to 78,730.32, 118,163.72 and 41,316.83 is: 62,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730.32 : 118,163.72 = 41,316.83 : x
  2. Step 2: Convert to fraction form
    78,730.32/118,163.72 = 41,316.83/x
  3. Step 3: Cross multiply
    78,730.32x = 118,163.72 × 41,316.83
  4. Step 4: Simplify right side
    78,730.32x = 4,882,149,886.10
  5. Step 5: Solve for x
    x = 4,882,149,886.10/78,730.32
  6. Step 6: Final answer
    x = 62,011.05

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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.