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Finding the Fourth Proportional to 84,869.98, 127,111.20 and 40,527.97

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Solution

The fourth proportional to 84,869.98, 127,111.20 and 40,527.97 is: 60,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,869.98 : 127,111.20 = 40,527.97 : x
  2. Step 2: Convert to fraction form
    84,869.98/127,111.20 = 40,527.97/x
  3. Step 3: Cross multiply
    84,869.98x = 127,111.20 × 40,527.97
  4. Step 4: Simplify right side
    84,869.98x = 5,151,558,900.26
  5. Step 5: Solve for x
    x = 5,151,558,900.26/84,869.98
  6. Step 6: Final answer
    x = 60,699.42

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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.