Home / 30,076.90-45,117.67-10,086.43

Finding the Fourth Proportional to 30,076.90, 45,117.67 and 10,086.43

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Solution

The fourth proportional to 30,076.90, 45,117.67 and 10,086.43 is: 15,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.90 : 45,117.67 = 10,086.43 : x
  2. Step 2: Convert to fraction form
    30,076.90/45,117.67 = 10,086.43/x
  3. Step 3: Cross multiply
    30,076.90x = 45,117.67 × 10,086.43
  4. Step 4: Simplify right side
    30,076.90x = 455,076,220.22
  5. Step 5: Solve for x
    x = 455,076,220.22/30,076.90
  6. Step 6: Final answer
    x = 15,130.42

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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.