Home / 86,972.81-130,477.79-26,999.96

Finding the Fourth Proportional to 86,972.81, 130,477.79 and 26,999.96

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Solution

The fourth proportional to 86,972.81, 130,477.79 and 26,999.96 is: 40,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.81 : 130,477.79 = 26,999.96 : x
  2. Step 2: Convert to fraction form
    86,972.81/130,477.79 = 26,999.96/x
  3. Step 3: Cross multiply
    86,972.81x = 130,477.79 × 26,999.96
  4. Step 4: Simplify right side
    86,972.81x = 3,522,894,526.00
  5. Step 5: Solve for x
    x = 3,522,894,526.00/86,972.81
  6. Step 6: Final answer
    x = 40,505.70

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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.