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Finding the Fourth Proportional to 86,969.40, 130,470.84 and 37,048.56

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Solution

The fourth proportional to 86,969.40, 130,470.84 and 37,048.56 is: 55,579.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,969.40 : 130,470.84 = 37,048.56 : x
  2. Step 2: Convert to fraction form
    86,969.40/130,470.84 = 37,048.56/x
  3. Step 3: Cross multiply
    86,969.40x = 130,470.84 × 37,048.56
  4. Step 4: Simplify right side
    86,969.40x = 4,833,756,743.99
  5. Step 5: Solve for x
    x = 4,833,756,743.99/86,969.40
  6. Step 6: Final answer
    x = 55,579.97

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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.