Home / 76,423.68-114,632.96-34,870.40

Finding the Fourth Proportional to 76,423.68, 114,632.96 and 34,870.40

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Solution

The fourth proportional to 76,423.68, 114,632.96 and 34,870.40 is: 52,304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,423.68 : 114,632.96 = 34,870.40 : x
  2. Step 2: Convert to fraction form
    76,423.68/114,632.96 = 34,870.40/x
  3. Step 3: Cross multiply
    76,423.68x = 114,632.96 × 34,870.40
  4. Step 4: Simplify right side
    76,423.68x = 3,997,297,168.38
  5. Step 5: Solve for x
    x = 3,997,297,168.38/76,423.68
  6. Step 6: Final answer
    x = 52,304.43

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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.