Home / 62,820-86,686.20-36,975.81

Finding the Fourth Proportional to 62,820, 86,686.20 and 36,975.81

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Solution

The fourth proportional to 62,820, 86,686.20 and 36,975.81 is: 51,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,820 : 86,686.20 = 36,975.81 : x
  2. Step 2: Convert to fraction form
    62,820/86,686.20 = 36,975.81/x
  3. Step 3: Cross multiply
    62,820x = 86,686.20 × 36,975.81
  4. Step 4: Simplify right side
    62,820x = 3,205,292,460.82
  5. Step 5: Solve for x
    x = 3,205,292,460.82/62,820
  6. Step 6: Final answer
    x = 51,023.44

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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.