Home / 77,927.07-116,890.65-18,762.74

Finding the Fourth Proportional to 77,927.07, 116,890.65 and 18,762.74

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Solution

The fourth proportional to 77,927.07, 116,890.65 and 18,762.74 is: 28,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,927.07 : 116,890.65 = 18,762.74 : x
  2. Step 2: Convert to fraction form
    77,927.07/116,890.65 = 18,762.74/x
  3. Step 3: Cross multiply
    77,927.07x = 116,890.65 × 18,762.74
  4. Step 4: Simplify right side
    77,927.07x = 2,193,188,289.93
  5. Step 5: Solve for x
    x = 2,193,188,289.93/77,927.07
  6. Step 6: Final answer
    x = 28,144.11

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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.