Home / 78,814.18-118,239.09-26,225.74

Finding the Fourth Proportional to 78,814.18, 118,239.09 and 26,225.74

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Solution

The fourth proportional to 78,814.18, 118,239.09 and 26,225.74 is: 39,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814.18 : 118,239.09 = 26,225.74 : x
  2. Step 2: Convert to fraction form
    78,814.18/118,239.09 = 26,225.74/x
  3. Step 3: Cross multiply
    78,814.18x = 118,239.09 × 26,225.74
  4. Step 4: Simplify right side
    78,814.18x = 3,100,907,632.18
  5. Step 5: Solve for x
    x = 3,100,907,632.18/78,814.18
  6. Step 6: Final answer
    x = 39,344.54

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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.