Home / 84,741.49-127,112.98-21,561.69

Finding the Fourth Proportional to 84,741.49, 127,112.98 and 21,561.69

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Solution

The fourth proportional to 84,741.49, 127,112.98 and 21,561.69 is: 32,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,741.49 : 127,112.98 = 21,561.69 : x
  2. Step 2: Convert to fraction form
    84,741.49/127,112.98 = 21,561.69/x
  3. Step 3: Cross multiply
    84,741.49x = 127,112.98 × 21,561.69
  4. Step 4: Simplify right side
    84,741.49x = 2,740,770,669.74
  5. Step 5: Solve for x
    x = 2,740,770,669.74/84,741.49
  6. Step 6: Final answer
    x = 32,342.72

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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.