Home / 78,726.08-118,063.53-26,121.44

Finding the Fourth Proportional to 78,726.08, 118,063.53 and 26,121.44

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Solution

The fourth proportional to 78,726.08, 118,063.53 and 26,121.44 is: 39,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,726.08 : 118,063.53 = 26,121.44 : x
  2. Step 2: Convert to fraction form
    78,726.08/118,063.53 = 26,121.44/x
  3. Step 3: Cross multiply
    78,726.08x = 118,063.53 × 26,121.44
  4. Step 4: Simplify right side
    78,726.08x = 3,083,989,415.08
  5. Step 5: Solve for x
    x = 3,083,989,415.08/78,726.08
  6. Step 6: Final answer
    x = 39,173.67

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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.