Home / 62,485.99-86,230.30-57,402.57

Finding the Fourth Proportional to 62,485.99, 86,230.30 and 57,402.57

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Solution

The fourth proportional to 62,485.99, 86,230.30 and 57,402.57 is: 79,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,485.99 : 86,230.30 = 57,402.57 : x
  2. Step 2: Convert to fraction form
    62,485.99/86,230.30 = 57,402.57/x
  3. Step 3: Cross multiply
    62,485.99x = 86,230.30 × 57,402.57
  4. Step 4: Simplify right side
    62,485.99x = 4,949,840,831.87
  5. Step 5: Solve for x
    x = 4,949,840,831.87/62,485.99
  6. Step 6: Final answer
    x = 79,215.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.