Home / 105,492.33-145,580.79-57,744.65

Finding the Fourth Proportional to 105,492.33, 145,580.79 and 57,744.65

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Solution

The fourth proportional to 105,492.33, 145,580.79 and 57,744.65 is: 79,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,492.33 : 145,580.79 = 57,744.65 : x
  2. Step 2: Convert to fraction form
    105,492.33/145,580.79 = 57,744.65/x
  3. Step 3: Cross multiply
    105,492.33x = 145,580.79 × 57,744.65
  4. Step 4: Simplify right side
    105,492.33x = 8,406,511,037.37
  5. Step 5: Solve for x
    x = 8,406,511,037.37/105,492.33
  6. Step 6: Final answer
    x = 79,688.36

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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.