Home / 77,280.34-106,650.84-43,286.80

Finding the Fourth Proportional to 77,280.34, 106,650.84 and 43,286.80

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Solution

The fourth proportional to 77,280.34, 106,650.84 and 43,286.80 is: 59,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280.34 : 106,650.84 = 43,286.80 : x
  2. Step 2: Convert to fraction form
    77,280.34/106,650.84 = 43,286.80/x
  3. Step 3: Cross multiply
    77,280.34x = 106,650.84 × 43,286.80
  4. Step 4: Simplify right side
    77,280.34x = 4,616,573,580.91
  5. Step 5: Solve for x
    x = 4,616,573,580.91/77,280.34
  6. Step 6: Final answer
    x = 59,738.01

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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.