Home / 55,640.49-76,783.05-30,146.15

Finding the Fourth Proportional to 55,640.49, 76,783.05 and 30,146.15

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Solution

The fourth proportional to 55,640.49, 76,783.05 and 30,146.15 is: 41,601.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640.49 : 76,783.05 = 30,146.15 : x
  2. Step 2: Convert to fraction form
    55,640.49/76,783.05 = 30,146.15/x
  3. Step 3: Cross multiply
    55,640.49x = 76,783.05 × 30,146.15
  4. Step 4: Simplify right side
    55,640.49x = 2,314,712,958.84
  5. Step 5: Solve for x
    x = 2,314,712,958.84/55,640.49
  6. Step 6: Final answer
    x = 41,601.23

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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.