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Finding the Fourth Proportional to 73,810.80, 101,858.40 and 40,276.80

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Solution

The fourth proportional to 73,810.80, 101,858.40 and 40,276.80 is: 55,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,810.80 : 101,858.40 = 40,276.80 : x
  2. Step 2: Convert to fraction form
    73,810.80/101,858.40 = 40,276.80/x
  3. Step 3: Cross multiply
    73,810.80x = 101,858.40 × 40,276.80
  4. Step 4: Simplify right side
    73,810.80x = 4,102,530,405.12
  5. Step 5: Solve for x
    x = 4,102,530,405.12/73,810.80
  6. Step 6: Final answer
    x = 55,581.71

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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.