Home / 84,743.80-127,114.79-20,702.52

Finding the Fourth Proportional to 84,743.80, 127,114.79 and 20,702.52

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Solution

The fourth proportional to 84,743.80, 127,114.79 and 20,702.52 is: 31,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,743.80 : 127,114.79 = 20,702.52 : x
  2. Step 2: Convert to fraction form
    84,743.80/127,114.79 = 20,702.52/x
  3. Step 3: Cross multiply
    84,743.80x = 127,114.79 × 20,702.52
  4. Step 4: Simplify right side
    84,743.80x = 2,631,596,482.27
  5. Step 5: Solve for x
    x = 2,631,596,482.27/84,743.80
  6. Step 6: Final answer
    x = 31,053.56

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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.