Home / 84,887.56-127,252.19-28,688.37

Finding the Fourth Proportional to 84,887.56, 127,252.19 and 28,688.37

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Solution

The fourth proportional to 84,887.56, 127,252.19 and 28,688.37 is: 43,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,887.56 : 127,252.19 = 28,688.37 : x
  2. Step 2: Convert to fraction form
    84,887.56/127,252.19 = 28,688.37/x
  3. Step 3: Cross multiply
    84,887.56x = 127,252.19 × 28,688.37
  4. Step 4: Simplify right side
    84,887.56x = 3,650,657,910.03
  5. Step 5: Solve for x
    x = 3,650,657,910.03/84,887.56
  6. Step 6: Final answer
    x = 43,005.81

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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.