Home / 86,993.32-120,045.10-51,176.41

Finding the Fourth Proportional to 86,993.32, 120,045.10 and 51,176.41

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Solution

The fourth proportional to 86,993.32, 120,045.10 and 51,176.41 is: 70,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,993.32 : 120,045.10 = 51,176.41 : x
  2. Step 2: Convert to fraction form
    86,993.32/120,045.10 = 51,176.41/x
  3. Step 3: Cross multiply
    86,993.32x = 120,045.10 × 51,176.41
  4. Step 4: Simplify right side
    86,993.32x = 6,143,477,256.09
  5. Step 5: Solve for x
    x = 6,143,477,256.09/86,993.32
  6. Step 6: Final answer
    x = 70,620.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.