Home / 45,405.81-68,022.86-25,698.51

Finding the Fourth Proportional to 45,405.81, 68,022.86 and 25,698.51

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Solution

The fourth proportional to 45,405.81, 68,022.86 and 25,698.51 is: 38,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.81 : 68,022.86 = 25,698.51 : x
  2. Step 2: Convert to fraction form
    45,405.81/68,022.86 = 25,698.51/x
  3. Step 3: Cross multiply
    45,405.81x = 68,022.86 × 25,698.51
  4. Step 4: Simplify right side
    45,405.81x = 1,748,086,019.45
  5. Step 5: Solve for x
    x = 1,748,086,019.45/45,405.81
  6. Step 6: Final answer
    x = 38,499.17

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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.