Home / 72,824.72-109,279.54-30,702.22

Finding the Fourth Proportional to 72,824.72, 109,279.54 and 30,702.22

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Solution

The fourth proportional to 72,824.72, 109,279.54 and 30,702.22 is: 46,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,824.72 : 109,279.54 = 30,702.22 : x
  2. Step 2: Convert to fraction form
    72,824.72/109,279.54 = 30,702.22/x
  3. Step 3: Cross multiply
    72,824.72x = 109,279.54 × 30,702.22
  4. Step 4: Simplify right side
    72,824.72x = 3,355,124,478.58
  5. Step 5: Solve for x
    x = 3,355,124,478.58/72,824.72
  6. Step 6: Final answer
    x = 46,071.23

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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.