Home / 74,488.41-111,732.35-30,114.63

Finding the Fourth Proportional to 74,488.41, 111,732.35 and 30,114.63

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Solution

The fourth proportional to 74,488.41, 111,732.35 and 30,114.63 is: 45,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,488.41 : 111,732.35 = 30,114.63 : x
  2. Step 2: Convert to fraction form
    74,488.41/111,732.35 = 30,114.63/x
  3. Step 3: Cross multiply
    74,488.41x = 111,732.35 × 30,114.63
  4. Step 4: Simplify right side
    74,488.41x = 3,364,778,228.71
  5. Step 5: Solve for x
    x = 3,364,778,228.71/74,488.41
  6. Step 6: Final answer
    x = 45,171.84

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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.