Home / 86,048.40-118,664.16-55,822.64

Finding the Fourth Proportional to 86,048.40, 118,664.16 and 55,822.64

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Solution

The fourth proportional to 86,048.40, 118,664.16 and 55,822.64 is: 76,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,048.40 : 118,664.16 = 55,822.64 : x
  2. Step 2: Convert to fraction form
    86,048.40/118,664.16 = 55,822.64/x
  3. Step 3: Cross multiply
    86,048.40x = 118,664.16 × 55,822.64
  4. Step 4: Simplify right side
    86,048.40x = 6,624,146,684.58
  5. Step 5: Solve for x
    x = 6,624,146,684.58/86,048.40
  6. Step 6: Final answer
    x = 76,981.64

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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.