Home / 76,771.04-115,069.02-35,130.56

Finding the Fourth Proportional to 76,771.04, 115,069.02 and 35,130.56

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Solution

The fourth proportional to 76,771.04, 115,069.02 and 35,130.56 is: 52,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,771.04 : 115,069.02 = 35,130.56 : x
  2. Step 2: Convert to fraction form
    76,771.04/115,069.02 = 35,130.56/x
  3. Step 3: Cross multiply
    76,771.04x = 115,069.02 × 35,130.56
  4. Step 4: Simplify right side
    76,771.04x = 4,042,439,111.25
  5. Step 5: Solve for x
    x = 4,042,439,111.25/76,771.04
  6. Step 6: Final answer
    x = 52,655.78

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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.