Home / 85,511.57-118,006.71-47,270.50

Finding the Fourth Proportional to 85,511.57, 118,006.71 and 47,270.50

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Solution

The fourth proportional to 85,511.57, 118,006.71 and 47,270.50 is: 65,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,511.57 : 118,006.71 = 47,270.50 : x
  2. Step 2: Convert to fraction form
    85,511.57/118,006.71 = 47,270.50/x
  3. Step 3: Cross multiply
    85,511.57x = 118,006.71 × 47,270.50
  4. Step 4: Simplify right side
    85,511.57x = 5,578,236,376.56
  5. Step 5: Solve for x
    x = 5,578,236,376.56/85,511.57
  6. Step 6: Final answer
    x = 65,233.71

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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.