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Finding the Fourth Proportional to 83,420.93, 115,120.93 and 45,695.81

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Solution

The fourth proportional to 83,420.93, 115,120.93 and 45,695.81 is: 63,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.93 : 115,120.93 = 45,695.81 : x
  2. Step 2: Convert to fraction form
    83,420.93/115,120.93 = 45,695.81/x
  3. Step 3: Cross multiply
    83,420.93x = 115,120.93 × 45,695.81
  4. Step 4: Simplify right side
    83,420.93x = 5,260,544,144.30
  5. Step 5: Solve for x
    x = 5,260,544,144.30/83,420.93
  6. Step 6: Final answer
    x = 63,060.24

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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.