Home / 77,131.00-106,441.02-43,140.07

Finding the Fourth Proportional to 77,131.00, 106,441.02 and 43,140.07

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Solution

The fourth proportional to 77,131.00, 106,441.02 and 43,140.07 is: 59,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,131.00 : 106,441.02 = 43,140.07 : x
  2. Step 2: Convert to fraction form
    77,131.00/106,441.02 = 43,140.07/x
  3. Step 3: Cross multiply
    77,131.00x = 106,441.02 × 43,140.07
  4. Step 4: Simplify right side
    77,131.00x = 4,591,872,787.57
  5. Step 5: Solve for x
    x = 4,591,872,787.57/77,131.00
  6. Step 6: Final answer
    x = 59,533.43

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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.