Home / 97,066.21-133,930.70-56,772.11

Finding the Fourth Proportional to 97,066.21, 133,930.70 and 56,772.11

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Solution

The fourth proportional to 97,066.21, 133,930.70 and 56,772.11 is: 78,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,066.21 : 133,930.70 = 56,772.11 : x
  2. Step 2: Convert to fraction form
    97,066.21/133,930.70 = 56,772.11/x
  3. Step 3: Cross multiply
    97,066.21x = 133,930.70 × 56,772.11
  4. Step 4: Simplify right side
    97,066.21x = 7,603,528,239.88
  5. Step 5: Solve for x
    x = 7,603,528,239.88/97,066.21
  6. Step 6: Final answer
    x = 78,333.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.