Home / 78,749.19-118,158.66-41,300.31

Finding the Fourth Proportional to 78,749.19, 118,158.66 and 41,300.31

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Solution

The fourth proportional to 78,749.19, 118,158.66 and 41,300.31 is: 61,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,749.19 : 118,158.66 = 41,300.31 : x
  2. Step 2: Convert to fraction form
    78,749.19/118,158.66 = 41,300.31/x
  3. Step 3: Cross multiply
    78,749.19x = 118,158.66 × 41,300.31
  4. Step 4: Simplify right side
    78,749.19x = 4,879,989,287.18
  5. Step 5: Solve for x
    x = 4,879,989,287.18/78,749.19
  6. Step 6: Final answer
    x = 61,968.76

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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.