Home / 56,871.28-85,308.98-21,328.99

Finding the Fourth Proportional to 56,871.28, 85,308.98 and 21,328.99

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Solution

The fourth proportional to 56,871.28, 85,308.98 and 21,328.99 is: 31,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,871.28 : 85,308.98 = 21,328.99 : x
  2. Step 2: Convert to fraction form
    56,871.28/85,308.98 = 21,328.99/x
  3. Step 3: Cross multiply
    56,871.28x = 85,308.98 × 21,328.99
  4. Step 4: Simplify right side
    56,871.28x = 1,819,554,181.39
  5. Step 5: Solve for x
    x = 1,819,554,181.39/56,871.28
  6. Step 6: Final answer
    x = 31,994.25

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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.