Home / 76,726.80-115,090.20-32,403.60

Finding the Fourth Proportional to 76,726.80, 115,090.20 and 32,403.60

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Solution

The fourth proportional to 76,726.80, 115,090.20 and 32,403.60 is: 48,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,726.80 : 115,090.20 = 32,403.60 : x
  2. Step 2: Convert to fraction form
    76,726.80/115,090.20 = 32,403.60/x
  3. Step 3: Cross multiply
    76,726.80x = 115,090.20 × 32,403.60
  4. Step 4: Simplify right side
    76,726.80x = 3,729,336,804.72
  5. Step 5: Solve for x
    x = 3,729,336,804.72/76,726.80
  6. Step 6: Final answer
    x = 48,605.40

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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.