Home / 51,318.90-70,819.38-28,658.30

Finding the Fourth Proportional to 51,318.90, 70,819.38 and 28,658.30

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Solution

The fourth proportional to 51,318.90, 70,819.38 and 28,658.30 is: 39,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,318.90 : 70,819.38 = 28,658.30 : x
  2. Step 2: Convert to fraction form
    51,318.90/70,819.38 = 28,658.30/x
  3. Step 3: Cross multiply
    51,318.90x = 70,819.38 × 28,658.30
  4. Step 4: Simplify right side
    51,318.90x = 2,029,562,683.76
  5. Step 5: Solve for x
    x = 2,029,562,683.76/51,318.90
  6. Step 6: Final answer
    x = 39,548.06

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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.