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Finding the Fourth Proportional to 86,360.63, 129,485.27 and 36,427.37

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Solution

The fourth proportional to 86,360.63, 129,485.27 and 36,427.37 is: 54,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,360.63 : 129,485.27 = 36,427.37 : x
  2. Step 2: Convert to fraction form
    86,360.63/129,485.27 = 36,427.37/x
  3. Step 3: Cross multiply
    86,360.63x = 129,485.27 × 36,427.37
  4. Step 4: Simplify right side
    86,360.63x = 4,716,807,283.48
  5. Step 5: Solve for x
    x = 4,716,807,283.48/86,360.63
  6. Step 6: Final answer
    x = 54,617.57

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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.