Home / 52,425.78-78,638.19-21,253.62

Finding the Fourth Proportional to 52,425.78, 78,638.19 and 21,253.62

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Solution

The fourth proportional to 52,425.78, 78,638.19 and 21,253.62 is: 31,880.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,425.78 : 78,638.19 = 21,253.62 : x
  2. Step 2: Convert to fraction form
    52,425.78/78,638.19 = 21,253.62/x
  3. Step 3: Cross multiply
    52,425.78x = 78,638.19 × 21,253.62
  4. Step 4: Simplify right side
    52,425.78x = 1,671,346,207.75
  5. Step 5: Solve for x
    x = 1,671,346,207.75/52,425.78
  6. Step 6: Final answer
    x = 31,880.24

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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.