Home / 72,692.04-100,315.07-40,425.95

Finding the Fourth Proportional to 72,692.04, 100,315.07 and 40,425.95

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Solution

The fourth proportional to 72,692.04, 100,315.07 and 40,425.95 is: 55,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,692.04 : 100,315.07 = 40,425.95 : x
  2. Step 2: Convert to fraction form
    72,692.04/100,315.07 = 40,425.95/x
  3. Step 3: Cross multiply
    72,692.04x = 100,315.07 × 40,425.95
  4. Step 4: Simplify right side
    72,692.04x = 4,055,332,004.07
  5. Step 5: Solve for x
    x = 4,055,332,004.07/72,692.04
  6. Step 6: Final answer
    x = 55,787.84

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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.