Home / 42,154.62-63,236.79-14,078.40

Finding the Fourth Proportional to 42,154.62, 63,236.79 and 14,078.40

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Solution

The fourth proportional to 42,154.62, 63,236.79 and 14,078.40 is: 21,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.62 : 63,236.79 = 14,078.40 : x
  2. Step 2: Convert to fraction form
    42,154.62/63,236.79 = 14,078.40/x
  3. Step 3: Cross multiply
    42,154.62x = 63,236.79 × 14,078.40
  4. Step 4: Simplify right side
    42,154.62x = 890,272,824.34
  5. Step 5: Solve for x
    x = 890,272,824.34/42,154.62
  6. Step 6: Final answer
    x = 21,119.22

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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.