Home / 81,059.48-111,828.37-53,848.65

Finding the Fourth Proportional to 81,059.48, 111,828.37 and 53,848.65

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Solution

The fourth proportional to 81,059.48, 111,828.37 and 53,848.65 is: 74,288.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,059.48 : 111,828.37 = 53,848.65 : x
  2. Step 2: Convert to fraction form
    81,059.48/111,828.37 = 53,848.65/x
  3. Step 3: Cross multiply
    81,059.48x = 111,828.37 × 53,848.65
  4. Step 4: Simplify right side
    81,059.48x = 6,021,806,664.32
  5. Step 5: Solve for x
    x = 6,021,806,664.32/81,059.48
  6. Step 6: Final answer
    x = 74,288.74

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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.