Home / 105,592.23-145,720.91-57,845.57

Finding the Fourth Proportional to 105,592.23, 145,720.91 and 57,845.57

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Solution

The fourth proportional to 105,592.23, 145,720.91 and 57,845.57 is: 79,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,592.23 : 145,720.91 = 57,845.57 : x
  2. Step 2: Convert to fraction form
    105,592.23/145,720.91 = 57,845.57/x
  3. Step 3: Cross multiply
    105,592.23x = 145,720.91 × 57,845.57
  4. Step 4: Simplify right side
    105,592.23x = 8,429,308,082.04
  5. Step 5: Solve for x
    x = 8,429,308,082.04/105,592.23
  6. Step 6: Final answer
    x = 79,828.87

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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.