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Finding the Fourth Proportional to 86,804.99, 130,207.37 and 57,007.34

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Solution

The fourth proportional to 86,804.99, 130,207.37 and 57,007.34 is: 85,510.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804.99 : 130,207.37 = 57,007.34 : x
  2. Step 2: Convert to fraction form
    86,804.99/130,207.37 = 57,007.34/x
  3. Step 3: Cross multiply
    86,804.99x = 130,207.37 × 57,007.34
  4. Step 4: Simplify right side
    86,804.99x = 7,422,776,577.72
  5. Step 5: Solve for x
    x = 7,422,776,577.72/86,804.99
  6. Step 6: Final answer
    x = 85,510.94

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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.