Home / 86,219.81-118,901.45-57,096.26

Finding the Fourth Proportional to 86,219.81, 118,901.45 and 57,096.26

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Solution

The fourth proportional to 86,219.81, 118,901.45 and 57,096.26 is: 78,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,219.81 : 118,901.45 = 57,096.26 : x
  2. Step 2: Convert to fraction form
    86,219.81/118,901.45 = 57,096.26/x
  3. Step 3: Cross multiply
    86,219.81x = 118,901.45 × 57,096.26
  4. Step 4: Simplify right side
    86,219.81x = 6,788,828,097.69
  5. Step 5: Solve for x
    x = 6,788,828,097.69/86,219.81
  6. Step 6: Final answer
    x = 78,738.61

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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.