Home / 83,983.80-115,898.91-45,745.11

Finding the Fourth Proportional to 83,983.80, 115,898.91 and 45,745.11

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Solution

The fourth proportional to 83,983.80, 115,898.91 and 45,745.11 is: 63,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,983.80 : 115,898.91 = 45,745.11 : x
  2. Step 2: Convert to fraction form
    83,983.80/115,898.91 = 45,745.11/x
  3. Step 3: Cross multiply
    83,983.80x = 115,898.91 × 45,745.11
  4. Step 4: Simplify right side
    83,983.80x = 5,301,808,386.83
  5. Step 5: Solve for x
    x = 5,301,808,386.83/83,983.80
  6. Step 6: Final answer
    x = 63,128.94

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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.