Home / 84,072.84-126,157.50-34,143.72

Finding the Fourth Proportional to 84,072.84, 126,157.50 and 34,143.72

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Solution

The fourth proportional to 84,072.84, 126,157.50 and 34,143.72 is: 51,235.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,072.84 : 126,157.50 = 34,143.72 : x
  2. Step 2: Convert to fraction form
    84,072.84/126,157.50 = 34,143.72/x
  3. Step 3: Cross multiply
    84,072.84x = 126,157.50 × 34,143.72
  4. Step 4: Simplify right side
    84,072.84x = 4,307,486,355.90
  5. Step 5: Solve for x
    x = 4,307,486,355.90/84,072.84
  6. Step 6: Final answer
    x = 51,235.17

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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.