Home / 84,609.02-126,915.36-28,450.91

Finding the Fourth Proportional to 84,609.02, 126,915.36 and 28,450.91

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Solution

The fourth proportional to 84,609.02, 126,915.36 and 28,450.91 is: 42,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,609.02 : 126,915.36 = 28,450.91 : x
  2. Step 2: Convert to fraction form
    84,609.02/126,915.36 = 28,450.91/x
  3. Step 3: Cross multiply
    84,609.02x = 126,915.36 × 28,450.91
  4. Step 4: Simplify right side
    84,609.02x = 3,610,857,695.58
  5. Step 5: Solve for x
    x = 3,610,857,695.58/84,609.02
  6. Step 6: Final answer
    x = 42,676.98

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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.