Home / 54,783.95-75,601.76-30,912.03

Finding the Fourth Proportional to 54,783.95, 75,601.76 and 30,912.03

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Solution

The fourth proportional to 54,783.95, 75,601.76 and 30,912.03 is: 42,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,783.95 : 75,601.76 = 30,912.03 : x
  2. Step 2: Convert to fraction form
    54,783.95/75,601.76 = 30,912.03/x
  3. Step 3: Cross multiply
    54,783.95x = 75,601.76 × 30,912.03
  4. Step 4: Simplify right side
    54,783.95x = 2,337,003,718.61
  5. Step 5: Solve for x
    x = 2,337,003,718.61/54,783.95
  6. Step 6: Final answer
    x = 42,658.55

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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.