Home / 86,427.75-119,207.29-66,055.84

Finding the Fourth Proportional to 86,427.75, 119,207.29 and 66,055.84

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Solution

The fourth proportional to 86,427.75, 119,207.29 and 66,055.84 is: 91,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,427.75 : 119,207.29 = 66,055.84 : x
  2. Step 2: Convert to fraction form
    86,427.75/119,207.29 = 66,055.84/x
  3. Step 3: Cross multiply
    86,427.75x = 119,207.29 × 66,055.84
  4. Step 4: Simplify right side
    86,427.75x = 7,874,337,675.07
  5. Step 5: Solve for x
    x = 7,874,337,675.07/86,427.75
  6. Step 6: Final answer
    x = 91,108.91

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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.