Home / 78,835.41-118,189.26-53,812.44

Finding the Fourth Proportional to 78,835.41, 118,189.26 and 53,812.44

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Solution

The fourth proportional to 78,835.41, 118,189.26 and 53,812.44 is: 80,675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,835.41 : 118,189.26 = 53,812.44 : x
  2. Step 2: Convert to fraction form
    78,835.41/118,189.26 = 53,812.44/x
  3. Step 3: Cross multiply
    78,835.41x = 118,189.26 × 53,812.44
  4. Step 4: Simplify right side
    78,835.41x = 6,360,052,462.39
  5. Step 5: Solve for x
    x = 6,360,052,462.39/78,835.41
  6. Step 6: Final answer
    x = 80,675.07

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1.5x scale

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.