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Finding the Fourth Proportional to 83,495.84, 125,242.04 and 20,316.30

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Solution

The fourth proportional to 83,495.84, 125,242.04 and 20,316.30 is: 30,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,495.84 : 125,242.04 = 20,316.30 : x
  2. Step 2: Convert to fraction form
    83,495.84/125,242.04 = 20,316.30/x
  3. Step 3: Cross multiply
    83,495.84x = 125,242.04 × 20,316.30
  4. Step 4: Simplify right side
    83,495.84x = 2,544,454,857.25
  5. Step 5: Solve for x
    x = 2,544,454,857.25/83,495.84
  6. Step 6: Final answer
    x = 30,474.03

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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.