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Finding the Fourth Proportional to 84,143.93, 116,118.99 and 45,904.34

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Solution

The fourth proportional to 84,143.93, 116,118.99 and 45,904.34 is: 63,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,143.93 : 116,118.99 = 45,904.34 : x
  2. Step 2: Convert to fraction form
    84,143.93/116,118.99 = 45,904.34/x
  3. Step 3: Cross multiply
    84,143.93x = 116,118.99 × 45,904.34
  4. Step 4: Simplify right side
    84,143.93x = 5,330,365,016.82
  5. Step 5: Solve for x
    x = 5,330,365,016.82/84,143.93
  6. Step 6: Final answer
    x = 63,348.19

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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.