Home / 84,974.12-127,463.82-28,813.40

Finding the Fourth Proportional to 84,974.12, 127,463.82 and 28,813.40

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Solution

The fourth proportional to 84,974.12, 127,463.82 and 28,813.40 is: 43,221.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,974.12 : 127,463.82 = 28,813.40 : x
  2. Step 2: Convert to fraction form
    84,974.12/127,463.82 = 28,813.40/x
  3. Step 3: Cross multiply
    84,974.12x = 127,463.82 × 28,813.40
  4. Step 4: Simplify right side
    84,974.12x = 3,672,666,031.19
  5. Step 5: Solve for x
    x = 3,672,666,031.19/84,974.12
  6. Step 6: Final answer
    x = 43,221.00

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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.