Home / 108,929.52-163,399.64-30,042

Finding the Fourth Proportional to 108,929.52, 163,399.64 and 30,042

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Solution

The fourth proportional to 108,929.52, 163,399.64 and 30,042 is: 45,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,929.52 : 163,399.64 = 30,042 : x
  2. Step 2: Convert to fraction form
    108,929.52/163,399.64 = 30,042/x
  3. Step 3: Cross multiply
    108,929.52x = 163,399.64 × 30,042
  4. Step 4: Simplify right side
    108,929.52x = 4,908,851,984.88
  5. Step 5: Solve for x
    x = 4,908,851,984.88/108,929.52
  6. Step 6: Final answer
    x = 45,064.48

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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.