Home / 74,749.84-112,124.77-30,380.06

Finding the Fourth Proportional to 74,749.84, 112,124.77 and 30,380.06

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Solution

The fourth proportional to 74,749.84, 112,124.77 and 30,380.06 is: 45,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,749.84 : 112,124.77 = 30,380.06 : x
  2. Step 2: Convert to fraction form
    74,749.84/112,124.77 = 30,380.06/x
  3. Step 3: Cross multiply
    74,749.84x = 112,124.77 × 30,380.06
  4. Step 4: Simplify right side
    74,749.84x = 3,406,357,240.09
  5. Step 5: Solve for x
    x = 3,406,357,240.09/74,749.84
  6. Step 6: Final answer
    x = 45,570.09

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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.