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Finding the Fourth Proportional to 52,622.40, 72,620.16 and 28,751.30

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Solution

The fourth proportional to 52,622.40, 72,620.16 and 28,751.30 is: 39,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,622.40 : 72,620.16 = 28,751.30 : x
  2. Step 2: Convert to fraction form
    52,622.40/72,620.16 = 28,751.30/x
  3. Step 3: Cross multiply
    52,622.40x = 72,620.16 × 28,751.30
  4. Step 4: Simplify right side
    52,622.40x = 2,087,924,006.21
  5. Step 5: Solve for x
    x = 2,087,924,006.21/52,622.40
  6. Step 6: Final answer
    x = 39,677.48

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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.