Home / 84,915.23-127,378.26-28,747.58

Finding the Fourth Proportional to 84,915.23, 127,378.26 and 28,747.58

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Solution

The fourth proportional to 84,915.23, 127,378.26 and 28,747.58 is: 43,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,915.23 : 127,378.26 = 28,747.58 : x
  2. Step 2: Convert to fraction form
    84,915.23/127,378.26 = 28,747.58/x
  3. Step 3: Cross multiply
    84,915.23x = 127,378.26 × 28,747.58
  4. Step 4: Simplify right side
    84,915.23x = 3,661,816,082.72
  5. Step 5: Solve for x
    x = 3,661,816,082.72/84,915.23
  6. Step 6: Final answer
    x = 43,123.20

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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.