Home / 69,386.10-103,997.16-31,911.84

Finding the Fourth Proportional to 69,386.10, 103,997.16 and 31,911.84

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Solution

The fourth proportional to 69,386.10, 103,997.16 and 31,911.84 is: 47,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,386.10 : 103,997.16 = 31,911.84 : x
  2. Step 2: Convert to fraction form
    69,386.10/103,997.16 = 31,911.84/x
  3. Step 3: Cross multiply
    69,386.10x = 103,997.16 × 31,911.84
  4. Step 4: Simplify right side
    69,386.10x = 3,318,740,730.37
  5. Step 5: Solve for x
    x = 3,318,740,730.37/69,386.10
  6. Step 6: Final answer
    x = 47,830.05

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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.