Home / 84,977.10-127,477.80-28,819.80

Finding the Fourth Proportional to 84,977.10, 127,477.80 and 28,819.80

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Solution

The fourth proportional to 84,977.10, 127,477.80 and 28,819.80 is: 43,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,977.10 : 127,477.80 = 28,819.80 : x
  2. Step 2: Convert to fraction form
    84,977.10/127,477.80 = 28,819.80/x
  3. Step 3: Cross multiply
    84,977.10x = 127,477.80 × 28,819.80
  4. Step 4: Simplify right side
    84,977.10x = 3,673,884,700.44
  5. Step 5: Solve for x
    x = 3,673,884,700.44/84,977.10
  6. Step 6: Final answer
    x = 43,233.82

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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.