Home / 55,741.23-76,901-31,855.09

Finding the Fourth Proportional to 55,741.23, 76,901 and 31,855.09

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Solution

The fourth proportional to 55,741.23, 76,901 and 31,855.09 is: 43,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,741.23 : 76,901 = 31,855.09 : x
  2. Step 2: Convert to fraction form
    55,741.23/76,901 = 31,855.09/x
  3. Step 3: Cross multiply
    55,741.23x = 76,901 × 31,855.09
  4. Step 4: Simplify right side
    55,741.23x = 2,449,688,276.09
  5. Step 5: Solve for x
    x = 2,449,688,276.09/55,741.23
  6. Step 6: Final answer
    x = 43,947.51

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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.