Home / 76,655.55-115,057.47-55,330.25

Finding the Fourth Proportional to 76,655.55, 115,057.47 and 55,330.25

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Solution

The fourth proportional to 76,655.55, 115,057.47 and 55,330.25 is: 83,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,655.55 : 115,057.47 = 55,330.25 : x
  2. Step 2: Convert to fraction form
    76,655.55/115,057.47 = 55,330.25/x
  3. Step 3: Cross multiply
    76,655.55x = 115,057.47 × 55,330.25
  4. Step 4: Simplify right side
    76,655.55x = 6,366,158,579.47
  5. Step 5: Solve for x
    x = 6,366,158,579.47/76,655.55
  6. Step 6: Final answer
    x = 83,048.89

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1.5x scale

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.