Home / 81,828.95-122,743.47-25,673.48

Finding the Fourth Proportional to 81,828.95, 122,743.47 and 25,673.48

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Solution

The fourth proportional to 81,828.95, 122,743.47 and 25,673.48 is: 38,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,828.95 : 122,743.47 = 25,673.48 : x
  2. Step 2: Convert to fraction form
    81,828.95/122,743.47 = 25,673.48/x
  3. Step 3: Cross multiply
    81,828.95x = 122,743.47 × 25,673.48
  4. Step 4: Simplify right side
    81,828.95x = 3,151,251,408.46
  5. Step 5: Solve for x
    x = 3,151,251,408.46/81,828.95
  6. Step 6: Final answer
    x = 38,510.23

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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.