Home / 66,023.98-99,045.38-21,654.20

Finding the Fourth Proportional to 66,023.98, 99,045.38 and 21,654.20

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Solution

The fourth proportional to 66,023.98, 99,045.38 and 21,654.20 is: 32,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,023.98 : 99,045.38 = 21,654.20 : x
  2. Step 2: Convert to fraction form
    66,023.98/99,045.38 = 21,654.20/x
  3. Step 3: Cross multiply
    66,023.98x = 99,045.38 × 21,654.20
  4. Step 4: Simplify right side
    66,023.98x = 2,144,748,467.60
  5. Step 5: Solve for x
    x = 2,144,748,467.60/66,023.98
  6. Step 6: Final answer
    x = 32,484.39

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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.