Home / 72,825.40-109,280.60-30,702.92

Finding the Fourth Proportional to 72,825.40, 109,280.60 and 30,702.92

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Solution

The fourth proportional to 72,825.40, 109,280.60 and 30,702.92 is: 46,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.40 : 109,280.60 = 30,702.92 : x
  2. Step 2: Convert to fraction form
    72,825.40/109,280.60 = 30,702.92/x
  3. Step 3: Cross multiply
    72,825.40x = 109,280.60 × 30,702.92
  4. Step 4: Simplify right side
    72,825.40x = 3,355,233,519.35
  5. Step 5: Solve for x
    x = 3,355,233,519.35/72,825.40
  6. Step 6: Final answer
    x = 46,072.30

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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.