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Finding the Fourth Proportional to 66,915.60, 100,373.40 and 29,953.68

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Solution

The fourth proportional to 66,915.60, 100,373.40 and 29,953.68 is: 44,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.60 : 100,373.40 = 29,953.68 : x
  2. Step 2: Convert to fraction form
    66,915.60/100,373.40 = 29,953.68/x
  3. Step 3: Cross multiply
    66,915.60x = 100,373.40 × 29,953.68
  4. Step 4: Simplify right side
    66,915.60x = 3,006,552,704.11
  5. Step 5: Solve for x
    x = 3,006,552,704.11/66,915.60
  6. Step 6: Final answer
    x = 44,930.52

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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.