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Finding the Fourth Proportional to 84,740.49, 127,111.49 and 21,560.69

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Solution

The fourth proportional to 84,740.49, 127,111.49 and 21,560.69 is: 32,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,740.49 : 127,111.49 = 21,560.69 : x
  2. Step 2: Convert to fraction form
    84,740.49/127,111.49 = 21,560.69/x
  3. Step 3: Cross multiply
    84,740.49x = 127,111.49 × 21,560.69
  4. Step 4: Simplify right side
    84,740.49x = 2,740,610,687.97
  5. Step 5: Solve for x
    x = 2,740,610,687.97/84,740.49
  6. Step 6: Final answer
    x = 32,341.22

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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.