Home / 55,754.72-83,628.96-40,777.20

Finding the Fourth Proportional to 55,754.72, 83,628.96 and 40,777.20

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Solution

The fourth proportional to 55,754.72, 83,628.96 and 40,777.20 is: 61,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,754.72 : 83,628.96 = 40,777.20 : x
  2. Step 2: Convert to fraction form
    55,754.72/83,628.96 = 40,777.20/x
  3. Step 3: Cross multiply
    55,754.72x = 83,628.96 × 40,777.20
  4. Step 4: Simplify right side
    55,754.72x = 3,410,154,827.71
  5. Step 5: Solve for x
    x = 3,410,154,827.71/55,754.72
  6. Step 6: Final answer
    x = 61,163.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.