Home / 66,072.34-99,070.44-21,686.77

Finding the Fourth Proportional to 66,072.34, 99,070.44 and 21,686.77

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Solution

The fourth proportional to 66,072.34, 99,070.44 and 21,686.77 is: 32,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.34 : 99,070.44 = 21,686.77 : x
  2. Step 2: Convert to fraction form
    66,072.34/99,070.44 = 21,686.77/x
  3. Step 3: Cross multiply
    66,072.34x = 99,070.44 × 21,686.77
  4. Step 4: Simplify right side
    66,072.34x = 2,148,517,846.08
  5. Step 5: Solve for x
    x = 2,148,517,846.08/66,072.34
  6. Step 6: Final answer
    x = 32,517.66

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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.