Home / 86,955.70-130,345.29-49,438.22

Finding the Fourth Proportional to 86,955.70, 130,345.29 and 49,438.22

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Solution

The fourth proportional to 86,955.70, 130,345.29 and 49,438.22 is: 74,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,955.70 : 130,345.29 = 49,438.22 : x
  2. Step 2: Convert to fraction form
    86,955.70/130,345.29 = 49,438.22/x
  3. Step 3: Cross multiply
    86,955.70x = 130,345.29 × 49,438.22
  4. Step 4: Simplify right side
    86,955.70x = 6,444,039,122.98
  5. Step 5: Solve for x
    x = 6,444,039,122.98/86,955.70
  6. Step 6: Final answer
    x = 74,107.15

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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.