Home / 89,349.09-133,688.65-53,193.30

Finding the Fourth Proportional to 89,349.09, 133,688.65 and 53,193.30

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Solution

The fourth proportional to 89,349.09, 133,688.65 and 53,193.30 is: 79,590.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,349.09 : 133,688.65 = 53,193.30 : x
  2. Step 2: Convert to fraction form
    89,349.09/133,688.65 = 53,193.30/x
  3. Step 3: Cross multiply
    89,349.09x = 133,688.65 × 53,193.30
  4. Step 4: Simplify right side
    89,349.09x = 7,111,339,531.64
  5. Step 5: Solve for x
    x = 7,111,339,531.64/89,349.09
  6. Step 6: Final answer
    x = 79,590.51

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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.