Home / 75,840.12-113,760.14-25,920.63

Finding the Fourth Proportional to 75,840.12, 113,760.14 and 25,920.63

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Solution

The fourth proportional to 75,840.12, 113,760.14 and 25,920.63 is: 38,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,840.12 : 113,760.14 = 25,920.63 : x
  2. Step 2: Convert to fraction form
    75,840.12/113,760.14 = 25,920.63/x
  3. Step 3: Cross multiply
    75,840.12x = 113,760.14 × 25,920.63
  4. Step 4: Simplify right side
    75,840.12x = 2,948,734,368.09
  5. Step 5: Solve for x
    x = 2,948,734,368.09/75,840.12
  6. Step 6: Final answer
    x = 38,880.93

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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.