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Finding the Fourth Proportional to 93,751.80, 129,378.24 and 51,310.68

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Solution

The fourth proportional to 93,751.80, 129,378.24 and 51,310.68 is: 70,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,751.80 : 129,378.24 = 51,310.68 : x
  2. Step 2: Convert to fraction form
    93,751.80/129,378.24 = 51,310.68/x
  3. Step 3: Cross multiply
    93,751.80x = 129,378.24 × 51,310.68
  4. Step 4: Simplify right side
    93,751.80x = 6,638,485,471.60
  5. Step 5: Solve for x
    x = 6,638,485,471.60/93,751.80
  6. Step 6: Final answer
    x = 70,809.15

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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.