Home / 84,899.12-117,155.64-47,172.08

Finding the Fourth Proportional to 84,899.12, 117,155.64 and 47,172.08

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Solution

The fourth proportional to 84,899.12, 117,155.64 and 47,172.08 is: 65,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,899.12 : 117,155.64 = 47,172.08 : x
  2. Step 2: Convert to fraction form
    84,899.12/117,155.64 = 47,172.08/x
  3. Step 3: Cross multiply
    84,899.12x = 117,155.64 × 47,172.08
  4. Step 4: Simplify right side
    84,899.12x = 5,526,475,222.53
  5. Step 5: Solve for x
    x = 5,526,475,222.53/84,899.12
  6. Step 6: Final answer
    x = 65,094.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.