Home / 85,704.48-128,554.56-26,537.76

Finding the Fourth Proportional to 85,704.48, 128,554.56 and 26,537.76

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Solution

The fourth proportional to 85,704.48, 128,554.56 and 26,537.76 is: 39,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,704.48 : 128,554.56 = 26,537.76 : x
  2. Step 2: Convert to fraction form
    85,704.48/128,554.56 = 26,537.76/x
  3. Step 3: Cross multiply
    85,704.48x = 128,554.56 × 26,537.76
  4. Step 4: Simplify right side
    85,704.48x = 3,411,550,060.19
  5. Step 5: Solve for x
    x = 3,411,550,060.19/85,704.48
  6. Step 6: Final answer
    x = 39,805.97

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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.