Home / 78,744.24-118,173.06-38,754.54

Finding the Fourth Proportional to 78,744.24, 118,173.06 and 38,754.54

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Solution

The fourth proportional to 78,744.24, 118,173.06 and 38,754.54 is: 58,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,744.24 : 118,173.06 = 38,754.54 : x
  2. Step 2: Convert to fraction form
    78,744.24/118,173.06 = 38,754.54/x
  3. Step 3: Cross multiply
    78,744.24x = 118,173.06 × 38,754.54
  4. Step 4: Simplify right side
    78,744.24x = 4,579,742,580.69
  5. Step 5: Solve for x
    x = 4,579,742,580.69/78,744.24
  6. Step 6: Final answer
    x = 58,159.72

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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.