Home / 68,342.89-94,313.23-38,128.21

Finding the Fourth Proportional to 68,342.89, 94,313.23 and 38,128.21

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Solution

The fourth proportional to 68,342.89, 94,313.23 and 38,128.21 is: 52,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,342.89 : 94,313.23 = 38,128.21 : x
  2. Step 2: Convert to fraction form
    68,342.89/94,313.23 = 38,128.21/x
  3. Step 3: Cross multiply
    68,342.89x = 94,313.23 × 38,128.21
  4. Step 4: Simplify right side
    68,342.89x = 3,595,994,639.22
  5. Step 5: Solve for x
    x = 3,595,994,639.22/68,342.89
  6. Step 6: Final answer
    x = 52,616.95

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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.