Home / 51,345.28-70,849.49-28,681.39

Finding the Fourth Proportional to 51,345.28, 70,849.49 and 28,681.39

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Solution

The fourth proportional to 51,345.28, 70,849.49 and 28,681.39 is: 39,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.28 : 70,849.49 = 28,681.39 : x
  2. Step 2: Convert to fraction form
    51,345.28/70,849.49 = 28,681.39/x
  3. Step 3: Cross multiply
    51,345.28x = 70,849.49 × 28,681.39
  4. Step 4: Simplify right side
    51,345.28x = 2,032,061,853.99
  5. Step 5: Solve for x
    x = 2,032,061,853.99/51,345.28
  6. Step 6: Final answer
    x = 39,576.41

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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.