Home / 78,807.54-118,212.34-26,217.03

Finding the Fourth Proportional to 78,807.54, 118,212.34 and 26,217.03

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Solution

The fourth proportional to 78,807.54, 118,212.34 and 26,217.03 is: 39,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,807.54 : 118,212.34 = 26,217.03 : x
  2. Step 2: Convert to fraction form
    78,807.54/118,212.34 = 26,217.03/x
  3. Step 3: Cross multiply
    78,807.54x = 118,212.34 × 26,217.03
  4. Step 4: Simplify right side
    78,807.54x = 3,099,176,464.15
  5. Step 5: Solve for x
    x = 3,099,176,464.15/78,807.54
  6. Step 6: Final answer
    x = 39,325.89

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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.