Home / 61,485.10-92,213.80-40,131.09

Finding the Fourth Proportional to 61,485.10, 92,213.80 and 40,131.09

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Solution

The fourth proportional to 61,485.10, 92,213.80 and 40,131.09 is: 60,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,485.10 : 92,213.80 = 40,131.09 : x
  2. Step 2: Convert to fraction form
    61,485.10/92,213.80 = 40,131.09/x
  3. Step 3: Cross multiply
    61,485.10x = 92,213.80 × 40,131.09
  4. Step 4: Simplify right side
    61,485.10x = 3,700,640,307.04
  5. Step 5: Solve for x
    x = 3,700,640,307.04/61,485.10
  6. Step 6: Final answer
    x = 60,187.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.