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Finding the Fourth Proportional to 84,950.37, 127,406.72 and 51,550.63

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Solution

The fourth proportional to 84,950.37, 127,406.72 and 51,550.63 is: 77,314.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,950.37 : 127,406.72 = 51,550.63 : x
  2. Step 2: Convert to fraction form
    84,950.37/127,406.72 = 51,550.63/x
  3. Step 3: Cross multiply
    84,950.37x = 127,406.72 × 51,550.63
  4. Step 4: Simplify right side
    84,950.37x = 6,567,896,492.59
  5. Step 5: Solve for x
    x = 6,567,896,492.59/84,950.37
  6. Step 6: Final answer
    x = 77,314.51

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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.