Home / 51,979.04-71,749.49-30,758.25

Finding the Fourth Proportional to 51,979.04, 71,749.49 and 30,758.25

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Solution

The fourth proportional to 51,979.04, 71,749.49 and 30,758.25 is: 42,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.04 : 71,749.49 = 30,758.25 : x
  2. Step 2: Convert to fraction form
    51,979.04/71,749.49 = 30,758.25/x
  3. Step 3: Cross multiply
    51,979.04x = 71,749.49 × 30,758.25
  4. Step 4: Simplify right side
    51,979.04x = 2,206,888,750.79
  5. Step 5: Solve for x
    x = 2,206,888,750.79/51,979.04
  6. Step 6: Final answer
    x = 42,457.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.