Home / 84,876.40-117,131.64-50,890.42

Finding the Fourth Proportional to 84,876.40, 117,131.64 and 50,890.42

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Solution

The fourth proportional to 84,876.40, 117,131.64 and 50,890.42 is: 70,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,876.40 : 117,131.64 = 50,890.42 : x
  2. Step 2: Convert to fraction form
    84,876.40/117,131.64 = 50,890.42/x
  3. Step 3: Cross multiply
    84,876.40x = 117,131.64 × 50,890.42
  4. Step 4: Simplify right side
    84,876.40x = 5,960,878,354.89
  5. Step 5: Solve for x
    x = 5,960,878,354.89/84,876.40
  6. Step 6: Final answer
    x = 70,230.10

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1.5x scale

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.