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Finding the Fourth Proportional to 51,000.40, 76,425.90 and 45,735.40

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Solution

The fourth proportional to 51,000.40, 76,425.90 and 45,735.40 is: 68,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,000.40 : 76,425.90 = 45,735.40 : x
  2. Step 2: Convert to fraction form
    51,000.40/76,425.90 = 45,735.40/x
  3. Step 3: Cross multiply
    51,000.40x = 76,425.90 × 45,735.40
  4. Step 4: Simplify right side
    51,000.40x = 3,495,369,106.86
  5. Step 5: Solve for x
    x = 3,495,369,106.86/51,000.40
  6. Step 6: Final answer
    x = 68,536.11

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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.