Home / 86,778.69-130,170.90-29,852.03

Finding the Fourth Proportional to 86,778.69, 130,170.90 and 29,852.03

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Solution

The fourth proportional to 86,778.69, 130,170.90 and 29,852.03 is: 44,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,778.69 : 130,170.90 = 29,852.03 : x
  2. Step 2: Convert to fraction form
    86,778.69/130,170.90 = 29,852.03/x
  3. Step 3: Cross multiply
    86,778.69x = 130,170.90 × 29,852.03
  4. Step 4: Simplify right side
    86,778.69x = 3,885,864,961.07
  5. Step 5: Solve for x
    x = 3,885,864,961.07/86,778.69
  6. Step 6: Final answer
    x = 44,779.02

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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.