Home / 53,890.20-80,835.30-49,953.60

Finding the Fourth Proportional to 53,890.20, 80,835.30 and 49,953.60

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Solution

The fourth proportional to 53,890.20, 80,835.30 and 49,953.60 is: 74,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,890.20 : 80,835.30 = 49,953.60 : x
  2. Step 2: Convert to fraction form
    53,890.20/80,835.30 = 49,953.60/x
  3. Step 3: Cross multiply
    53,890.20x = 80,835.30 × 49,953.60
  4. Step 4: Simplify right side
    53,890.20x = 4,038,014,242.08
  5. Step 5: Solve for x
    x = 4,038,014,242.08/53,890.20
  6. Step 6: Final answer
    x = 74,930.40

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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.