Home / 84,998.10-127,509.30-28,840.80

Finding the Fourth Proportional to 84,998.10, 127,509.30 and 28,840.80

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Solution

The fourth proportional to 84,998.10, 127,509.30 and 28,840.80 is: 43,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,998.10 : 127,509.30 = 28,840.80 : x
  2. Step 2: Convert to fraction form
    84,998.10/127,509.30 = 28,840.80/x
  3. Step 3: Cross multiply
    84,998.10x = 127,509.30 × 28,840.80
  4. Step 4: Simplify right side
    84,998.10x = 3,677,470,219.44
  5. Step 5: Solve for x
    x = 3,677,470,219.44/84,998.10
  6. Step 6: Final answer
    x = 43,265.32

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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.