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Finding the Fourth Proportional to 37,375.40, 56,065.80 and 12,432.80

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Solution

The fourth proportional to 37,375.40, 56,065.80 and 12,432.80 is: 18,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,375.40 : 56,065.80 = 12,432.80 : x
  2. Step 2: Convert to fraction form
    37,375.40/56,065.80 = 12,432.80/x
  3. Step 3: Cross multiply
    37,375.40x = 56,065.80 × 12,432.80
  4. Step 4: Simplify right side
    37,375.40x = 697,054,878.24
  5. Step 5: Solve for x
    x = 697,054,878.24/37,375.40
  6. Step 6: Final answer
    x = 18,650.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.