Home / 52,511.09-72,478.40-31,286.25

Finding the Fourth Proportional to 52,511.09, 72,478.40 and 31,286.25

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Solution

The fourth proportional to 52,511.09, 72,478.40 and 31,286.25 is: 43,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,511.09 : 72,478.40 = 31,286.25 : x
  2. Step 2: Convert to fraction form
    52,511.09/72,478.40 = 31,286.25/x
  3. Step 3: Cross multiply
    52,511.09x = 72,478.40 × 31,286.25
  4. Step 4: Simplify right side
    52,511.09x = 2,267,577,185.57
  5. Step 5: Solve for x
    x = 2,267,577,185.57/52,511.09
  6. Step 6: Final answer
    x = 43,182.83

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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.