Home / 75,636.68-113,307.39-45,980.96

Finding the Fourth Proportional to 75,636.68, 113,307.39 and 45,980.96

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Solution

The fourth proportional to 75,636.68, 113,307.39 and 45,980.96 is: 68,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,636.68 : 113,307.39 = 45,980.96 : x
  2. Step 2: Convert to fraction form
    75,636.68/113,307.39 = 45,980.96/x
  3. Step 3: Cross multiply
    75,636.68x = 113,307.39 × 45,980.96
  4. Step 4: Simplify right side
    75,636.68x = 5,209,982,000.76
  5. Step 5: Solve for x
    x = 5,209,982,000.76/75,636.68
  6. Step 6: Final answer
    x = 68,881.69

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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.