Home / 54,764.10-75,576.78-30,890.77

Finding the Fourth Proportional to 54,764.10, 75,576.78 and 30,890.77

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Solution

The fourth proportional to 54,764.10, 75,576.78 and 30,890.77 is: 42,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,764.10 : 75,576.78 = 30,890.77 : x
  2. Step 2: Convert to fraction form
    54,764.10/75,576.78 = 30,890.77/x
  3. Step 3: Cross multiply
    54,764.10x = 75,576.78 × 30,890.77
  4. Step 4: Simplify right side
    54,764.10x = 2,334,624,739.38
  5. Step 5: Solve for x
    x = 2,334,624,739.38/54,764.10
  6. Step 6: Final answer
    x = 42,630.57

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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.