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Finding the Fourth Proportional to 84,838.56, 127,222.89 and 36,810.21

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Solution

The fourth proportional to 84,838.56, 127,222.89 and 36,810.21 is: 55,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,838.56 : 127,222.89 = 36,810.21 : x
  2. Step 2: Convert to fraction form
    84,838.56/127,222.89 = 36,810.21/x
  3. Step 3: Cross multiply
    84,838.56x = 127,222.89 × 36,810.21
  4. Step 4: Simplify right side
    84,838.56x = 4,683,101,297.71
  5. Step 5: Solve for x
    x = 4,683,101,297.71/84,838.56
  6. Step 6: Final answer
    x = 55,200.15

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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.