Home / 97,081.05-133,962.31-56,786.94

Finding the Fourth Proportional to 97,081.05, 133,962.31 and 56,786.94

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Solution

The fourth proportional to 97,081.05, 133,962.31 and 56,786.94 is: 78,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,081.05 : 133,962.31 = 56,786.94 : x
  2. Step 2: Convert to fraction form
    97,081.05/133,962.31 = 56,786.94/x
  3. Step 3: Cross multiply
    97,081.05x = 133,962.31 × 56,786.94
  4. Step 4: Simplify right side
    97,081.05x = 7,607,309,411.79
  5. Step 5: Solve for x
    x = 7,607,309,411.79/97,081.05
  6. Step 6: Final answer
    x = 78,360.40

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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.