Home / 65,136.13-89,887.86-36,841.21

Finding the Fourth Proportional to 65,136.13, 89,887.86 and 36,841.21

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Solution

The fourth proportional to 65,136.13, 89,887.86 and 36,841.21 is: 50,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,136.13 : 89,887.86 = 36,841.21 : x
  2. Step 2: Convert to fraction form
    65,136.13/89,887.86 = 36,841.21/x
  3. Step 3: Cross multiply
    65,136.13x = 89,887.86 × 36,841.21
  4. Step 4: Simplify right side
    65,136.13x = 3,311,576,893.07
  5. Step 5: Solve for x
    x = 3,311,576,893.07/65,136.13
  6. Step 6: Final answer
    x = 50,840.86

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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.