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Finding the Fourth Proportional to 52,380, 72,284.28 and 28,506.60

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Solution

The fourth proportional to 52,380, 72,284.28 and 28,506.60 is: 39,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,380 : 72,284.28 = 28,506.60 : x
  2. Step 2: Convert to fraction form
    52,380/72,284.28 = 28,506.60/x
  3. Step 3: Cross multiply
    52,380x = 72,284.28 × 28,506.60
  4. Step 4: Simplify right side
    52,380x = 2,060,579,056.25
  5. Step 5: Solve for x
    x = 2,060,579,056.25/52,380
  6. Step 6: Final answer
    x = 39,339.04

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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.