Home / 86,059.12-118,747.64-53,789.92

Finding the Fourth Proportional to 86,059.12, 118,747.64 and 53,789.92

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Solution

The fourth proportional to 86,059.12, 118,747.64 and 53,789.92 is: 74,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,059.12 : 118,747.64 = 53,789.92 : x
  2. Step 2: Convert to fraction form
    86,059.12/118,747.64 = 53,789.92/x
  3. Step 3: Cross multiply
    86,059.12x = 118,747.64 × 53,789.92
  4. Step 4: Simplify right side
    86,059.12x = 6,387,426,055.79
  5. Step 5: Solve for x
    x = 6,387,426,055.79/86,059.12
  6. Step 6: Final answer
    x = 74,221.37

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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.