Home / 67,639.08-93,356.64-39,348.48

Finding the Fourth Proportional to 67,639.08, 93,356.64 and 39,348.48

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Solution

The fourth proportional to 67,639.08, 93,356.64 and 39,348.48 is: 54,309.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,639.08 : 93,356.64 = 39,348.48 : x
  2. Step 2: Convert to fraction form
    67,639.08/93,356.64 = 39,348.48/x
  3. Step 3: Cross multiply
    67,639.08x = 93,356.64 × 39,348.48
  4. Step 4: Simplify right side
    67,639.08x = 3,673,441,881.91
  5. Step 5: Solve for x
    x = 3,673,441,881.91/67,639.08
  6. Step 6: Final answer
    x = 54,309.46

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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.