Home / 79,521.54-119,282.23-20,357.11

Finding the Fourth Proportional to 79,521.54, 119,282.23 and 20,357.11

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Solution

The fourth proportional to 79,521.54, 119,282.23 and 20,357.11 is: 30,535.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,521.54 : 119,282.23 = 20,357.11 : x
  2. Step 2: Convert to fraction form
    79,521.54/119,282.23 = 20,357.11/x
  3. Step 3: Cross multiply
    79,521.54x = 119,282.23 × 20,357.11
  4. Step 4: Simplify right side
    79,521.54x = 2,428,241,477.16
  5. Step 5: Solve for x
    x = 2,428,241,477.16/79,521.54
  6. Step 6: Final answer
    x = 30,535.64

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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.