Home / 66,928.17-92,363.79-40,065.50

Finding the Fourth Proportional to 66,928.17, 92,363.79 and 40,065.50

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Solution

The fourth proportional to 66,928.17, 92,363.79 and 40,065.50 is: 55,292.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928.17 : 92,363.79 = 40,065.50 : x
  2. Step 2: Convert to fraction form
    66,928.17/92,363.79 = 40,065.50/x
  3. Step 3: Cross multiply
    66,928.17x = 92,363.79 × 40,065.50
  4. Step 4: Simplify right side
    66,928.17x = 3,700,601,809.40
  5. Step 5: Solve for x
    x = 3,700,601,809.40/66,928.17
  6. Step 6: Final answer
    x = 55,292.14

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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.