Home / 76,400.90-114,730.60-49,792.10

Finding the Fourth Proportional to 76,400.90, 114,730.60 and 49,792.10

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Solution

The fourth proportional to 76,400.90, 114,730.60 and 49,792.10 is: 74,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,400.90 : 114,730.60 = 49,792.10 : x
  2. Step 2: Convert to fraction form
    76,400.90/114,730.60 = 49,792.10/x
  3. Step 3: Cross multiply
    76,400.90x = 114,730.60 × 49,792.10
  4. Step 4: Simplify right side
    76,400.90x = 5,712,677,508.26
  5. Step 5: Solve for x
    x = 5,712,677,508.26/76,400.90
  6. Step 6: Final answer
    x = 74,772.38

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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.