Home / 61,412.20-92,118.30-21,970.60

Finding the Fourth Proportional to 61,412.20, 92,118.30 and 21,970.60

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Solution

The fourth proportional to 61,412.20, 92,118.30 and 21,970.60 is: 32,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,412.20 : 92,118.30 = 21,970.60 : x
  2. Step 2: Convert to fraction form
    61,412.20/92,118.30 = 21,970.60/x
  3. Step 3: Cross multiply
    61,412.20x = 92,118.30 × 21,970.60
  4. Step 4: Simplify right side
    61,412.20x = 2,023,894,321.98
  5. Step 5: Solve for x
    x = 2,023,894,321.98/61,412.20
  6. Step 6: Final answer
    x = 32,955.90

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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.