Home / 68,953.08-103,429.62-19,031.52

Finding the Fourth Proportional to 68,953.08, 103,429.62 and 19,031.52

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Solution

The fourth proportional to 68,953.08, 103,429.62 and 19,031.52 is: 28,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953.08 : 103,429.62 = 19,031.52 : x
  2. Step 2: Convert to fraction form
    68,953.08/103,429.62 = 19,031.52/x
  3. Step 3: Cross multiply
    68,953.08x = 103,429.62 × 19,031.52
  4. Step 4: Simplify right side
    68,953.08x = 1,968,422,881.62
  5. Step 5: Solve for x
    x = 1,968,422,881.62/68,953.08
  6. Step 6: Final answer
    x = 28,547.28

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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.