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Finding the Fourth Proportional to 66,835.64, 100,253.44 and 16,915.99

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Solution

The fourth proportional to 66,835.64, 100,253.44 and 16,915.99 is: 25,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,835.64 : 100,253.44 = 16,915.99 : x
  2. Step 2: Convert to fraction form
    66,835.64/100,253.44 = 16,915.99/x
  3. Step 3: Cross multiply
    66,835.64x = 100,253.44 × 16,915.99
  4. Step 4: Simplify right side
    66,835.64x = 1,695,886,188.51
  5. Step 5: Solve for x
    x = 1,695,886,188.51/66,835.64
  6. Step 6: Final answer
    x = 25,373.98

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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.