Home / 79,800.39-119,700.59-20,642.04

Finding the Fourth Proportional to 79,800.39, 119,700.59 and 20,642.04

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Solution

The fourth proportional to 79,800.39, 119,700.59 and 20,642.04 is: 30,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,800.39 : 119,700.59 = 20,642.04 : x
  2. Step 2: Convert to fraction form
    79,800.39/119,700.59 = 20,642.04/x
  3. Step 3: Cross multiply
    79,800.39x = 119,700.59 × 20,642.04
  4. Step 4: Simplify right side
    79,800.39x = 2,470,864,263.59
  5. Step 5: Solve for x
    x = 2,470,864,263.59/79,800.39
  6. Step 6: Final answer
    x = 30,963.06

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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.