Home / 72,583.56-108,334.44-70,812.36

Finding the Fourth Proportional to 72,583.56, 108,334.44 and 70,812.36

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Solution

The fourth proportional to 72,583.56, 108,334.44 and 70,812.36 is: 105,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583.56 : 108,334.44 = 70,812.36 : x
  2. Step 2: Convert to fraction form
    72,583.56/108,334.44 = 70,812.36/x
  3. Step 3: Cross multiply
    72,583.56x = 108,334.44 × 70,812.36
  4. Step 4: Simplify right side
    72,583.56x = 7,671,417,365.68
  5. Step 5: Solve for x
    x = 7,671,417,365.68/72,583.56
  6. Step 6: Final answer
    x = 105,690.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.