Home / 73,162.24-100,964-39,628.16

Finding the Fourth Proportional to 73,162.24, 100,964 and 39,628.16

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Solution

The fourth proportional to 73,162.24, 100,964 and 39,628.16 is: 54,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,162.24 : 100,964 = 39,628.16 : x
  2. Step 2: Convert to fraction form
    73,162.24/100,964 = 39,628.16/x
  3. Step 3: Cross multiply
    73,162.24x = 100,964 × 39,628.16
  4. Step 4: Simplify right side
    73,162.24x = 4,001,017,546.24
  5. Step 5: Solve for x
    x = 4,001,017,546.24/73,162.24
  6. Step 6: Final answer
    x = 54,686.92

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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.