Home / 57,970.80-86,948.10-18,531.90

Finding the Fourth Proportional to 57,970.80, 86,948.10 and 18,531.90

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Solution

The fourth proportional to 57,970.80, 86,948.10 and 18,531.90 is: 27,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,970.80 : 86,948.10 = 18,531.90 : x
  2. Step 2: Convert to fraction form
    57,970.80/86,948.10 = 18,531.90/x
  3. Step 3: Cross multiply
    57,970.80x = 86,948.10 × 18,531.90
  4. Step 4: Simplify right side
    57,970.80x = 1,611,313,494.39
  5. Step 5: Solve for x
    x = 1,611,313,494.39/57,970.80
  6. Step 6: Final answer
    x = 27,795.26

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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.