Home / 212,325.13-318,487.72-54,553.58

Finding the Fourth Proportional to 212,325.13, 318,487.72 and 54,553.58

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Solution

The fourth proportional to 212,325.13, 318,487.72 and 54,553.58 is: 81,830.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,325.13 : 318,487.72 = 54,553.58 : x
  2. Step 2: Convert to fraction form
    212,325.13/318,487.72 = 54,553.58/x
  3. Step 3: Cross multiply
    212,325.13x = 318,487.72 × 54,553.58
  4. Step 4: Simplify right side
    212,325.13x = 17,374,645,312.04
  5. Step 5: Solve for x
    x = 17,374,645,312.04/212,325.13
  6. Step 6: Final answer
    x = 81,830.38

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1.5x scale

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.