Home / 77,766.28-116,644.56-40,315.12

Finding the Fourth Proportional to 77,766.28, 116,644.56 and 40,315.12

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Solution

The fourth proportional to 77,766.28, 116,644.56 and 40,315.12 is: 60,470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,766.28 : 116,644.56 = 40,315.12 : x
  2. Step 2: Convert to fraction form
    77,766.28/116,644.56 = 40,315.12/x
  3. Step 3: Cross multiply
    77,766.28x = 116,644.56 × 40,315.12
  4. Step 4: Simplify right side
    77,766.28x = 4,702,539,433.75
  5. Step 5: Solve for x
    x = 4,702,539,433.75/77,766.28
  6. Step 6: Final answer
    x = 60,470.16

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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.