Home / 76,422.24-105,463.68-42,431.52

Finding the Fourth Proportional to 76,422.24, 105,463.68 and 42,431.52

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Solution

The fourth proportional to 76,422.24, 105,463.68 and 42,431.52 is: 58,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,422.24 : 105,463.68 = 42,431.52 : x
  2. Step 2: Convert to fraction form
    76,422.24/105,463.68 = 42,431.52/x
  3. Step 3: Cross multiply
    76,422.24x = 105,463.68 × 42,431.52
  4. Step 4: Simplify right side
    76,422.24x = 4,474,984,247.19
  5. Step 5: Solve for x
    x = 4,474,984,247.19/76,422.24
  6. Step 6: Final answer
    x = 58,556.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.