Home / 86,700.15-130,054.73-27,540.45

Finding the Fourth Proportional to 86,700.15, 130,054.73 and 27,540.45

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Solution

The fourth proportional to 86,700.15, 130,054.73 and 27,540.45 is: 41,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,700.15 : 130,054.73 = 27,540.45 : x
  2. Step 2: Convert to fraction form
    86,700.15/130,054.73 = 27,540.45/x
  3. Step 3: Cross multiply
    86,700.15x = 130,054.73 × 27,540.45
  4. Step 4: Simplify right side
    86,700.15x = 3,581,765,788.83
  5. Step 5: Solve for x
    x = 3,581,765,788.83/86,700.15
  6. Step 6: Final answer
    x = 41,312.11

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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.