Home / 81,828.63-112,885.38-53,146.26

Finding the Fourth Proportional to 81,828.63, 112,885.38 and 53,146.26

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Solution

The fourth proportional to 81,828.63, 112,885.38 and 53,146.26 is: 73,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,828.63 : 112,885.38 = 53,146.26 : x
  2. Step 2: Convert to fraction form
    81,828.63/112,885.38 = 53,146.26/x
  3. Step 3: Cross multiply
    81,828.63x = 112,885.38 × 53,146.26
  4. Step 4: Simplify right side
    81,828.63x = 5,999,435,755.68
  5. Step 5: Solve for x
    x = 5,999,435,755.68/81,828.63
  6. Step 6: Final answer
    x = 73,317.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.