Home / 74,743.84-112,154.80-30,403.36

Finding the Fourth Proportional to 74,743.84, 112,154.80 and 30,403.36

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Solution

The fourth proportional to 74,743.84, 112,154.80 and 30,403.36 is: 45,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,743.84 : 112,154.80 = 30,403.36 : x
  2. Step 2: Convert to fraction form
    74,743.84/112,154.80 = 30,403.36/x
  3. Step 3: Cross multiply
    74,743.84x = 112,154.80 × 30,403.36
  4. Step 4: Simplify right side
    74,743.84x = 3,409,882,760.13
  5. Step 5: Solve for x
    x = 3,409,882,760.13/74,743.84
  6. Step 6: Final answer
    x = 45,620.92

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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.