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Finding the Fourth Proportional to 84,833.80, 127,250.70 and 77,057.80

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Solution

The fourth proportional to 84,833.80, 127,250.70 and 77,057.80 is: 115,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,833.80 : 127,250.70 = 77,057.80 : x
  2. Step 2: Convert to fraction form
    84,833.80/127,250.70 = 77,057.80/x
  3. Step 3: Cross multiply
    84,833.80x = 127,250.70 × 77,057.80
  4. Step 4: Simplify right side
    84,833.80x = 9,805,658,990.46
  5. Step 5: Solve for x
    x = 9,805,658,990.46/84,833.80
  6. Step 6: Final answer
    x = 115,586.70

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1.5x scale

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.