Home / 86,705.39-130,064.46-36,779.82

Finding the Fourth Proportional to 86,705.39, 130,064.46 and 36,779.82

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Solution

The fourth proportional to 86,705.39, 130,064.46 and 36,779.82 is: 55,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,705.39 : 130,064.46 = 36,779.82 : x
  2. Step 2: Convert to fraction form
    86,705.39/130,064.46 = 36,779.82/x
  3. Step 3: Cross multiply
    86,705.39x = 130,064.46 × 36,779.82
  4. Step 4: Simplify right side
    86,705.39x = 4,783,747,427.20
  5. Step 5: Solve for x
    x = 4,783,747,427.20/86,705.39
  6. Step 6: Final answer
    x = 55,172.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.