Home / 65,231.04-90,056.16-42,939.84

Finding the Fourth Proportional to 65,231.04, 90,056.16 and 42,939.84

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Solution

The fourth proportional to 65,231.04, 90,056.16 and 42,939.84 is: 59,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,231.04 : 90,056.16 = 42,939.84 : x
  2. Step 2: Convert to fraction form
    65,231.04/90,056.16 = 42,939.84/x
  3. Step 3: Cross multiply
    65,231.04x = 90,056.16 × 42,939.84
  4. Step 4: Simplify right side
    65,231.04x = 3,866,997,101.41
  5. Step 5: Solve for x
    x = 3,866,997,101.41/65,231.04
  6. Step 6: Final answer
    x = 59,281.55

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