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Finding the Fourth Proportional to 84,018.28, 115,941.78 and 46,290.28

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Solution

The fourth proportional to 84,018.28, 115,941.78 and 46,290.28 is: 63,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,018.28 : 115,941.78 = 46,290.28 : x
  2. Step 2: Convert to fraction form
    84,018.28/115,941.78 = 46,290.28/x
  3. Step 3: Cross multiply
    84,018.28x = 115,941.78 × 46,290.28
  4. Step 4: Simplify right side
    84,018.28x = 5,366,977,459.90
  5. Step 5: Solve for x
    x = 5,366,977,459.90/84,018.28
  6. Step 6: Final answer
    x = 63,878.69

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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.