Home / 84,740.99-127,112.23-21,561.19

Finding the Fourth Proportional to 84,740.99, 127,112.23 and 21,561.19

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Solution

The fourth proportional to 84,740.99, 127,112.23 and 21,561.19 is: 32,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,740.99 : 127,112.23 = 21,561.19 : x
  2. Step 2: Convert to fraction form
    84,740.99/127,112.23 = 21,561.19/x
  3. Step 3: Cross multiply
    84,740.99x = 127,112.23 × 21,561.19
  4. Step 4: Simplify right side
    84,740.99x = 2,740,690,942.35
  5. Step 5: Solve for x
    x = 2,740,690,942.35/84,740.99
  6. Step 6: Final answer
    x = 32,341.97

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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.