Home / 85,688.26-118,249.68-47,962.50

Finding the Fourth Proportional to 85,688.26, 118,249.68 and 47,962.50

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Solution

The fourth proportional to 85,688.26, 118,249.68 and 47,962.50 is: 66,188.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,688.26 : 118,249.68 = 47,962.50 : x
  2. Step 2: Convert to fraction form
    85,688.26/118,249.68 = 47,962.50/x
  3. Step 3: Cross multiply
    85,688.26x = 118,249.68 × 47,962.50
  4. Step 4: Simplify right side
    85,688.26x = 5,671,550,277
  5. Step 5: Solve for x
    x = 5,671,550,277/85,688.26
  6. Step 6: Final answer
    x = 66,188.18

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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.