Home / 75,378.60-113,033.88-28,598.40

Finding the Fourth Proportional to 75,378.60, 113,033.88 and 28,598.40

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Solution

The fourth proportional to 75,378.60, 113,033.88 and 28,598.40 is: 42,884.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,378.60 : 113,033.88 = 28,598.40 : x
  2. Step 2: Convert to fraction form
    75,378.60/113,033.88 = 28,598.40/x
  3. Step 3: Cross multiply
    75,378.60x = 113,033.88 × 28,598.40
  4. Step 4: Simplify right side
    75,378.60x = 3,232,588,113.79
  5. Step 5: Solve for x
    x = 3,232,588,113.79/75,378.60
  6. Step 6: Final answer
    x = 42,884.69

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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.