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Finding the Fourth Proportional to 66,987.63, 100,466.22 and 19,592.91

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Solution

The fourth proportional to 66,987.63, 100,466.22 and 19,592.91 is: 29,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.63 : 100,466.22 = 19,592.91 : x
  2. Step 2: Convert to fraction form
    66,987.63/100,466.22 = 19,592.91/x
  3. Step 3: Cross multiply
    66,987.63x = 100,466.22 × 19,592.91
  4. Step 4: Simplify right side
    66,987.63x = 1,968,425,606.50
  5. Step 5: Solve for x
    x = 1,968,425,606.50/66,987.63
  6. Step 6: Final answer
    x = 29,384.91

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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.