Home / 79,870.19-110,192.94-51,205.64

Finding the Fourth Proportional to 79,870.19, 110,192.94 and 51,205.64

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Solution

The fourth proportional to 79,870.19, 110,192.94 and 51,205.64 is: 70,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,870.19 : 110,192.94 = 51,205.64 : x
  2. Step 2: Convert to fraction form
    79,870.19/110,192.94 = 51,205.64/x
  3. Step 3: Cross multiply
    79,870.19x = 110,192.94 × 51,205.64
  4. Step 4: Simplify right side
    79,870.19x = 5,642,499,465.22
  5. Step 5: Solve for x
    x = 5,642,499,465.22/79,870.19
  6. Step 6: Final answer
    x = 70,645.88

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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.