Home / 40,822.98-61,206.63-20,783.22

Finding the Fourth Proportional to 40,822.98, 61,206.63 and 20,783.22

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Solution

The fourth proportional to 40,822.98, 61,206.63 and 20,783.22 is: 31,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,822.98 : 61,206.63 = 20,783.22 : x
  2. Step 2: Convert to fraction form
    40,822.98/61,206.63 = 20,783.22/x
  3. Step 3: Cross multiply
    40,822.98x = 61,206.63 × 20,783.22
  4. Step 4: Simplify right side
    40,822.98x = 1,272,070,856.75
  5. Step 5: Solve for x
    x = 1,272,070,856.75/40,822.98
  6. Step 6: Final answer
    x = 31,160.66

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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.