Home / 85,861.98-118,487.76-47,615.36

Finding the Fourth Proportional to 85,861.98, 118,487.76 and 47,615.36

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Solution

The fourth proportional to 85,861.98, 118,487.76 and 47,615.36 is: 65,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861.98 : 118,487.76 = 47,615.36 : x
  2. Step 2: Convert to fraction form
    85,861.98/118,487.76 = 47,615.36/x
  3. Step 3: Cross multiply
    85,861.98x = 118,487.76 × 47,615.36
  4. Step 4: Simplify right side
    85,861.98x = 5,641,836,755.55
  5. Step 5: Solve for x
    x = 5,641,836,755.55/85,861.98
  6. Step 6: Final answer
    x = 65,708.21

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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.