Home / 56,970.14-85,406.00-21,885.80

Finding the Fourth Proportional to 56,970.14, 85,406.00 and 21,885.80

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Solution

The fourth proportional to 56,970.14, 85,406.00 and 21,885.80 is: 32,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,970.14 : 85,406.00 = 21,885.80 : x
  2. Step 2: Convert to fraction form
    56,970.14/85,406.00 = 21,885.80/x
  3. Step 3: Cross multiply
    56,970.14x = 85,406.00 × 21,885.80
  4. Step 4: Simplify right side
    56,970.14x = 1,869,178,098.34
  5. Step 5: Solve for x
    x = 1,869,178,098.34/56,970.14
  6. Step 6: Final answer
    x = 32,809.79

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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.