Home / 84,051.29-115,987.39-45,810.02

Finding the Fourth Proportional to 84,051.29, 115,987.39 and 45,810.02

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Solution

The fourth proportional to 84,051.29, 115,987.39 and 45,810.02 is: 63,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,051.29 : 115,987.39 = 45,810.02 : x
  2. Step 2: Convert to fraction form
    84,051.29/115,987.39 = 45,810.02/x
  3. Step 3: Cross multiply
    84,051.29x = 115,987.39 × 45,810.02
  4. Step 4: Simplify right side
    84,051.29x = 5,313,384,831.09
  5. Step 5: Solve for x
    x = 5,313,384,831.09/84,051.29
  6. Step 6: Final answer
    x = 63,215.98

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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.