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Finding the Fourth Proportional to 52,522.80, 72,478.80 and 28,649.28

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Solution

The fourth proportional to 52,522.80, 72,478.80 and 28,649.28 is: 39,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,522.80 : 72,478.80 = 28,649.28 : x
  2. Step 2: Convert to fraction form
    52,522.80/72,478.80 = 28,649.28/x
  3. Step 3: Cross multiply
    52,522.80x = 72,478.80 × 28,649.28
  4. Step 4: Simplify right side
    52,522.80x = 2,076,465,435.26
  5. Step 5: Solve for x
    x = 2,076,465,435.26/52,522.80
  6. Step 6: Final answer
    x = 39,534.55

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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.