Home / 86,071.68-118,812.42-54,234.36

Finding the Fourth Proportional to 86,071.68, 118,812.42 and 54,234.36

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Solution

The fourth proportional to 86,071.68, 118,812.42 and 54,234.36 is: 74,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,071.68 : 118,812.42 = 54,234.36 : x
  2. Step 2: Convert to fraction form
    86,071.68/118,812.42 = 54,234.36/x
  3. Step 3: Cross multiply
    86,071.68x = 118,812.42 × 54,234.36
  4. Step 4: Simplify right side
    86,071.68x = 6,443,715,558.75
  5. Step 5: Solve for x
    x = 6,443,715,558.75/86,071.68
  6. Step 6: Final answer
    x = 74,864.53

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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.