Home / 61,628.64-92,456.88-19,511.28

Finding the Fourth Proportional to 61,628.64, 92,456.88 and 19,511.28

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Solution

The fourth proportional to 61,628.64, 92,456.88 and 19,511.28 is: 29,271.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,628.64 : 92,456.88 = 19,511.28 : x
  2. Step 2: Convert to fraction form
    61,628.64/92,456.88 = 19,511.28/x
  3. Step 3: Cross multiply
    61,628.64x = 92,456.88 × 19,511.28
  4. Step 4: Simplify right side
    61,628.64x = 1,803,952,073.61
  5. Step 5: Solve for x
    x = 1,803,952,073.61/61,628.64
  6. Step 6: Final answer
    x = 29,271.33

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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.