Home / 51,238.19-70,709.12-28,576.43

Finding the Fourth Proportional to 51,238.19, 70,709.12 and 28,576.43

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Solution

The fourth proportional to 51,238.19, 70,709.12 and 28,576.43 is: 39,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.19 : 70,709.12 = 28,576.43 : x
  2. Step 2: Convert to fraction form
    51,238.19/70,709.12 = 28,576.43/x
  3. Step 3: Cross multiply
    51,238.19x = 70,709.12 × 28,576.43
  4. Step 4: Simplify right side
    51,238.19x = 2,020,614,075.16
  5. Step 5: Solve for x
    x = 2,020,614,075.16/51,238.19
  6. Step 6: Final answer
    x = 39,435.70

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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.