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Finding the Fourth Proportional to 83,662.50, 115,455.06 and 45,937.56

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Solution

The fourth proportional to 83,662.50, 115,455.06 and 45,937.56 is: 63,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,662.50 : 115,455.06 = 45,937.56 : x
  2. Step 2: Convert to fraction form
    83,662.50/115,455.06 = 45,937.56/x
  3. Step 3: Cross multiply
    83,662.50x = 115,455.06 × 45,937.56
  4. Step 4: Simplify right side
    83,662.50x = 5,303,723,746.05
  5. Step 5: Solve for x
    x = 5,303,723,746.05/83,662.50
  6. Step 6: Final answer
    x = 63,394.28

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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.