Home / 79,664.81-119,503.35-20,501.06

Finding the Fourth Proportional to 79,664.81, 119,503.35 and 20,501.06

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Solution

The fourth proportional to 79,664.81, 119,503.35 and 20,501.06 is: 30,753.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,664.81 : 119,503.35 = 20,501.06 : x
  2. Step 2: Convert to fraction form
    79,664.81/119,503.35 = 20,501.06/x
  3. Step 3: Cross multiply
    79,664.81x = 119,503.35 × 20,501.06
  4. Step 4: Simplify right side
    79,664.81x = 2,449,944,751.03
  5. Step 5: Solve for x
    x = 2,449,944,751.03/79,664.81
  6. Step 6: Final answer
    x = 30,753.16

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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.