Home / 84,811.24-127,071.06-66,084.04

Finding the Fourth Proportional to 84,811.24, 127,071.06 and 66,084.04

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Solution

The fourth proportional to 84,811.24, 127,071.06 and 66,084.04 is: 99,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,811.24 : 127,071.06 = 66,084.04 : x
  2. Step 2: Convert to fraction form
    84,811.24/127,071.06 = 66,084.04/x
  3. Step 3: Cross multiply
    84,811.24x = 127,071.06 × 66,084.04
  4. Step 4: Simplify right side
    84,811.24x = 8,397,369,011.88
  5. Step 5: Solve for x
    x = 8,397,369,011.88/84,811.24
  6. Step 6: Final answer
    x = 99,012.45

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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.