Home / 75,031.60-112,505.84-30,689.49

Finding the Fourth Proportional to 75,031.60, 112,505.84 and 30,689.49

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Solution

The fourth proportional to 75,031.60, 112,505.84 and 30,689.49 is: 46,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,031.60 : 112,505.84 = 30,689.49 : x
  2. Step 2: Convert to fraction form
    75,031.60/112,505.84 = 30,689.49/x
  3. Step 3: Cross multiply
    75,031.60x = 112,505.84 × 30,689.49
  4. Step 4: Simplify right side
    75,031.60x = 3,452,746,289.09
  5. Step 5: Solve for x
    x = 3,452,746,289.09/75,031.60
  6. Step 6: Final answer
    x = 46,017.23

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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.