Home / 51,218.16-76,826.32-19,619.65

Finding the Fourth Proportional to 51,218.16, 76,826.32 and 19,619.65

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Solution

The fourth proportional to 51,218.16, 76,826.32 and 19,619.65 is: 29,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.16 : 76,826.32 = 19,619.65 : x
  2. Step 2: Convert to fraction form
    51,218.16/76,826.32 = 19,619.65/x
  3. Step 3: Cross multiply
    51,218.16x = 76,826.32 × 19,619.65
  4. Step 4: Simplify right side
    51,218.16x = 1,507,305,509.19
  5. Step 5: Solve for x
    x = 1,507,305,509.19/51,218.16
  6. Step 6: Final answer
    x = 29,429.12

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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.