Home / 85,136.06-117,487.77-47,410.31

Finding the Fourth Proportional to 85,136.06, 117,487.77 and 47,410.31

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Solution

The fourth proportional to 85,136.06, 117,487.77 and 47,410.31 is: 65,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,136.06 : 117,487.77 = 47,410.31 : x
  2. Step 2: Convert to fraction form
    85,136.06/117,487.77 = 47,410.31/x
  3. Step 3: Cross multiply
    85,136.06x = 117,487.77 × 47,410.31
  4. Step 4: Simplify right side
    85,136.06x = 5,570,131,712.84
  5. Step 5: Solve for x
    x = 5,570,131,712.84/85,136.06
  6. Step 6: Final answer
    x = 65,426.23

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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.