Home / 76,270.12-114,416.16-28,903.12

Finding the Fourth Proportional to 76,270.12, 114,416.16 and 28,903.12

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Solution

The fourth proportional to 76,270.12, 114,416.16 and 28,903.12 is: 43,358.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,270.12 : 114,416.16 = 28,903.12 : x
  2. Step 2: Convert to fraction form
    76,270.12/114,416.16 = 28,903.12/x
  3. Step 3: Cross multiply
    76,270.12x = 114,416.16 × 28,903.12
  4. Step 4: Simplify right side
    76,270.12x = 3,306,984,002.42
  5. Step 5: Solve for x
    x = 3,306,984,002.42/76,270.12
  6. Step 6: Final answer
    x = 43,358.84

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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.