Home / 78,747.74-118,077.78-46,739.82

Finding the Fourth Proportional to 78,747.74, 118,077.78 and 46,739.82

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Solution

The fourth proportional to 78,747.74, 118,077.78 and 46,739.82 is: 70,083.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,747.74 : 118,077.78 = 46,739.82 : x
  2. Step 2: Convert to fraction form
    78,747.74/118,077.78 = 46,739.82/x
  3. Step 3: Cross multiply
    78,747.74x = 118,077.78 × 46,739.82
  4. Step 4: Simplify right side
    78,747.74x = 5,518,934,183.20
  5. Step 5: Solve for x
    x = 5,518,934,183.20/78,747.74
  6. Step 6: Final answer
    x = 70,083.72

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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.