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Finding the Fourth Proportional to 52,480.70, 72,422.43 and 28,607.30

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Solution

The fourth proportional to 52,480.70, 72,422.43 and 28,607.30 is: 39,477.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.70 : 72,422.43 = 28,607.30 : x
  2. Step 2: Convert to fraction form
    52,480.70/72,422.43 = 28,607.30/x
  3. Step 3: Cross multiply
    52,480.70x = 72,422.43 × 28,607.30
  4. Step 4: Simplify right side
    52,480.70x = 2,071,810,181.74
  5. Step 5: Solve for x
    x = 2,071,810,181.74/52,480.70
  6. Step 6: Final answer
    x = 39,477.56

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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.