Home / 272,529.84-408,860.19-85,541.34

Finding the Fourth Proportional to 272,529.84, 408,860.19 and 85,541.34

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Solution

The fourth proportional to 272,529.84, 408,860.19 and 85,541.34 is: 128,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,529.84 : 408,860.19 = 85,541.34 : x
  2. Step 2: Convert to fraction form
    272,529.84/408,860.19 = 85,541.34/x
  3. Step 3: Cross multiply
    272,529.84x = 408,860.19 × 85,541.34
  4. Step 4: Simplify right side
    272,529.84x = 34,974,448,525.25
  5. Step 5: Solve for x
    x = 34,974,448,525.25/272,529.84
  6. Step 6: Final answer
    x = 128,332.55

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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.