Home / 56,011.36-84,018.48-19,101.28

Finding the Fourth Proportional to 56,011.36, 84,018.48 and 19,101.28

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Solution

The fourth proportional to 56,011.36, 84,018.48 and 19,101.28 is: 28,652.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,011.36 : 84,018.48 = 19,101.28 : x
  2. Step 2: Convert to fraction form
    56,011.36/84,018.48 = 19,101.28/x
  3. Step 3: Cross multiply
    56,011.36x = 84,018.48 × 19,101.28
  4. Step 4: Simplify right side
    56,011.36x = 1,604,860,511.65
  5. Step 5: Solve for x
    x = 1,604,860,511.65/56,011.36
  6. Step 6: Final answer
    x = 28,652.41

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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.