Home / 84,739.71-127,130.09-25,571.77

Finding the Fourth Proportional to 84,739.71, 127,130.09 and 25,571.77

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Solution

The fourth proportional to 84,739.71, 127,130.09 and 25,571.77 is: 38,363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739.71 : 127,130.09 = 25,571.77 : x
  2. Step 2: Convert to fraction form
    84,739.71/127,130.09 = 25,571.77/x
  3. Step 3: Cross multiply
    84,739.71x = 127,130.09 × 25,571.77
  4. Step 4: Simplify right side
    84,739.71x = 3,250,941,421.56
  5. Step 5: Solve for x
    x = 3,250,941,421.56/84,739.71
  6. Step 6: Final answer
    x = 38,363.85

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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.