Home / 76,607.20-114,928.08-31,627.36

Finding the Fourth Proportional to 76,607.20, 114,928.08 and 31,627.36

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Solution

The fourth proportional to 76,607.20, 114,928.08 and 31,627.36 is: 47,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,607.20 : 114,928.08 = 31,627.36 : x
  2. Step 2: Convert to fraction form
    76,607.20/114,928.08 = 31,627.36/x
  3. Step 3: Cross multiply
    76,607.20x = 114,928.08 × 31,627.36
  4. Step 4: Simplify right side
    76,607.20x = 3,634,871,760.27
  5. Step 5: Solve for x
    x = 3,634,871,760.27/76,607.20
  6. Step 6: Final answer
    x = 47,448.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.