Home / 78,639.35-117,960.39-26,050.21

Finding the Fourth Proportional to 78,639.35, 117,960.39 and 26,050.21

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Solution

The fourth proportional to 78,639.35, 117,960.39 and 26,050.21 is: 39,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,639.35 : 117,960.39 = 26,050.21 : x
  2. Step 2: Convert to fraction form
    78,639.35/117,960.39 = 26,050.21/x
  3. Step 3: Cross multiply
    78,639.35x = 117,960.39 × 26,050.21
  4. Step 4: Simplify right side
    78,639.35x = 3,072,892,636.28
  5. Step 5: Solve for x
    x = 3,072,892,636.28/78,639.35
  6. Step 6: Final answer
    x = 39,075.77

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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.