Home / 51,660.04-77,442.64-20,091.08

Finding the Fourth Proportional to 51,660.04, 77,442.64 and 20,091.08

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Solution

The fourth proportional to 51,660.04, 77,442.64 and 20,091.08 is: 30,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,660.04 : 77,442.64 = 20,091.08 : x
  2. Step 2: Convert to fraction form
    51,660.04/77,442.64 = 20,091.08/x
  3. Step 3: Cross multiply
    51,660.04x = 77,442.64 × 20,091.08
  4. Step 4: Simplify right side
    51,660.04x = 1,555,906,275.65
  5. Step 5: Solve for x
    x = 1,555,906,275.65/51,660.04
  6. Step 6: Final answer
    x = 30,118.18

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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.