Home / 83,576.12-125,382.64-30,985.60

Finding the Fourth Proportional to 83,576.12, 125,382.64 and 30,985.60

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Solution

The fourth proportional to 83,576.12, 125,382.64 and 30,985.60 is: 46,485.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,576.12 : 125,382.64 = 30,985.60 : x
  2. Step 2: Convert to fraction form
    83,576.12/125,382.64 = 30,985.60/x
  3. Step 3: Cross multiply
    83,576.12x = 125,382.64 × 30,985.60
  4. Step 4: Simplify right side
    83,576.12x = 3,885,056,329.98
  5. Step 5: Solve for x
    x = 3,885,056,329.98/83,576.12
  6. Step 6: Final answer
    x = 46,485.24

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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.