Home / 75,031.22-112,505.28-30,689.11

Finding the Fourth Proportional to 75,031.22, 112,505.28 and 30,689.11

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Solution

The fourth proportional to 75,031.22, 112,505.28 and 30,689.11 is: 46,016.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,031.22 : 112,505.28 = 30,689.11 : x
  2. Step 2: Convert to fraction form
    75,031.22/112,505.28 = 30,689.11/x
  3. Step 3: Cross multiply
    75,031.22x = 112,505.28 × 30,689.11
  4. Step 4: Simplify right side
    75,031.22x = 3,452,686,913.50
  5. Step 5: Solve for x
    x = 3,452,686,913.50/75,031.22
  6. Step 6: Final answer
    x = 46,016.67

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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.