Home / 84,143.59-116,115.91-45,903.21

Finding the Fourth Proportional to 84,143.59, 116,115.91 and 45,903.21

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Solution

The fourth proportional to 84,143.59, 116,115.91 and 45,903.21 is: 63,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,143.59 : 116,115.91 = 45,903.21 : x
  2. Step 2: Convert to fraction form
    84,143.59/116,115.91 = 45,903.21/x
  3. Step 3: Cross multiply
    84,143.59x = 116,115.91 × 45,903.21
  4. Step 4: Simplify right side
    84,143.59x = 5,330,092,450.88
  5. Step 5: Solve for x
    x = 5,330,092,450.88/84,143.59
  6. Step 6: Final answer
    x = 63,345.20

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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.