Home / 56,139.98-84,210.36-38,556.50

Finding the Fourth Proportional to 56,139.98, 84,210.36 and 38,556.50

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Solution

The fourth proportional to 56,139.98, 84,210.36 and 38,556.50 is: 57,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,139.98 : 84,210.36 = 38,556.50 : x
  2. Step 2: Convert to fraction form
    56,139.98/84,210.36 = 38,556.50/x
  3. Step 3: Cross multiply
    56,139.98x = 84,210.36 × 38,556.50
  4. Step 4: Simplify right side
    56,139.98x = 3,246,856,745.34
  5. Step 5: Solve for x
    x = 3,246,856,745.34/56,139.98
  6. Step 6: Final answer
    x = 57,835.02

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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.