Home / 75,031.34-112,505.47-30,689.24

Finding the Fourth Proportional to 75,031.34, 112,505.47 and 30,689.24

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Solution

The fourth proportional to 75,031.34, 112,505.47 and 30,689.24 is: 46,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,031.34 : 112,505.47 = 30,689.24 : x
  2. Step 2: Convert to fraction form
    75,031.34/112,505.47 = 30,689.24/x
  3. Step 3: Cross multiply
    75,031.34x = 112,505.47 × 30,689.24
  4. Step 4: Simplify right side
    75,031.34x = 3,452,706,730.89
  5. Step 5: Solve for x
    x = 3,452,706,730.89/75,031.34
  6. Step 6: Final answer
    x = 46,016.86

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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.