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Finding the Fourth Proportional to 57,730.45, 80,625.80 and 57,730.45

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Solution

The fourth proportional to 57,730.45, 80,625.80 and 57,730.45 is: 80,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,730.45 : 80,625.80 = 57,730.45 : x
  2. Step 2: Convert to fraction form
    57,730.45/80,625.80 = 57,730.45/x
  3. Step 3: Cross multiply
    57,730.45x = 80,625.80 × 57,730.45
  4. Step 4: Simplify right side
    57,730.45x = 4,654,563,715.61
  5. Step 5: Solve for x
    x = 4,654,563,715.61/57,730.45
  6. Step 6: Final answer
    x = 80,625.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.