Home / 75,306.24-112,971.78-30,921.21

Finding the Fourth Proportional to 75,306.24, 112,971.78 and 30,921.21

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Solution

The fourth proportional to 75,306.24, 112,971.78 and 30,921.21 is: 46,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,306.24 : 112,971.78 = 30,921.21 : x
  2. Step 2: Convert to fraction form
    75,306.24/112,971.78 = 30,921.21/x
  3. Step 3: Cross multiply
    75,306.24x = 112,971.78 × 30,921.21
  4. Step 4: Simplify right side
    75,306.24x = 3,493,224,133.45
  5. Step 5: Solve for x
    x = 3,493,224,133.45/75,306.24
  6. Step 6: Final answer
    x = 46,386.91

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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.