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Finding the Fourth Proportional to 45,037.54, 67,531.95 and 31,915.54

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Solution

The fourth proportional to 45,037.54, 67,531.95 and 31,915.54 is: 47,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,037.54 : 67,531.95 = 31,915.54 : x
  2. Step 2: Convert to fraction form
    45,037.54/67,531.95 = 31,915.54/x
  3. Step 3: Cross multiply
    45,037.54x = 67,531.95 × 31,915.54
  4. Step 4: Simplify right side
    45,037.54x = 2,155,318,651.50
  5. Step 5: Solve for x
    x = 2,155,318,651.50/45,037.54
  6. Step 6: Final answer
    x = 47,856.05

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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.