Home / 74,803.43-112,108.19-30,378.58

Finding the Fourth Proportional to 74,803.43, 112,108.19 and 30,378.58

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Solution

The fourth proportional to 74,803.43, 112,108.19 and 30,378.58 is: 45,528.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,803.43 : 112,108.19 = 30,378.58 : x
  2. Step 2: Convert to fraction form
    74,803.43/112,108.19 = 30,378.58/x
  3. Step 3: Cross multiply
    74,803.43x = 112,108.19 × 30,378.58
  4. Step 4: Simplify right side
    74,803.43x = 3,405,687,186.41
  5. Step 5: Solve for x
    x = 3,405,687,186.41/74,803.43
  6. Step 6: Final answer
    x = 45,528.49

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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.