Home / 62,977.28-86,907-36,135.68

Finding the Fourth Proportional to 62,977.28, 86,907 and 36,135.68

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Solution

The fourth proportional to 62,977.28, 86,907 and 36,135.68 is: 49,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,977.28 : 86,907 = 36,135.68 : x
  2. Step 2: Convert to fraction form
    62,977.28/86,907 = 36,135.68/x
  3. Step 3: Cross multiply
    62,977.28x = 86,907 × 36,135.68
  4. Step 4: Simplify right side
    62,977.28x = 3,140,443,541.76
  5. Step 5: Solve for x
    x = 3,140,443,541.76/62,977.28
  6. Step 6: Final answer
    x = 49,866.29

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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.