Home / 92,206.08-138,205.44-39,640.32

Finding the Fourth Proportional to 92,206.08, 138,205.44 and 39,640.32

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Solution

The fourth proportional to 92,206.08, 138,205.44 and 39,640.32 is: 59,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,206.08 : 138,205.44 = 39,640.32 : x
  2. Step 2: Convert to fraction form
    92,206.08/138,205.44 = 39,640.32/x
  3. Step 3: Cross multiply
    92,206.08x = 138,205.44 × 39,640.32
  4. Step 4: Simplify right side
    92,206.08x = 5,478,507,867.34
  5. Step 5: Solve for x
    x = 5,478,507,867.34/92,206.08
  6. Step 6: Final answer
    x = 59,415.91

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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.