Home / 84,704.12-127,023.92-28,529.16

Finding the Fourth Proportional to 84,704.12, 127,023.92 and 28,529.16

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Solution

The fourth proportional to 84,704.12, 127,023.92 and 28,529.16 is: 42,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,704.12 : 127,023.92 = 28,529.16 : x
  2. Step 2: Convert to fraction form
    84,704.12/127,023.92 = 28,529.16/x
  3. Step 3: Cross multiply
    84,704.12x = 127,023.92 × 28,529.16
  4. Step 4: Simplify right side
    84,704.12x = 3,623,885,737.51
  5. Step 5: Solve for x
    x = 3,623,885,737.51/84,704.12
  6. Step 6: Final answer
    x = 42,782.87

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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.