Home / 84,637.54-126,956.49-21,457.64

Finding the Fourth Proportional to 84,637.54, 126,956.49 and 21,457.64

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Solution

The fourth proportional to 84,637.54, 126,956.49 and 21,457.64 is: 32,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,637.54 : 126,956.49 = 21,457.64 : x
  2. Step 2: Convert to fraction form
    84,637.54/126,956.49 = 21,457.64/x
  3. Step 3: Cross multiply
    84,637.54x = 126,956.49 × 21,457.64
  4. Step 4: Simplify right side
    84,637.54x = 2,724,186,550.80
  5. Step 5: Solve for x
    x = 2,724,186,550.80/84,637.54
  6. Step 6: Final answer
    x = 32,186.50

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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.