Home / 85,848.96-128,779.61-22,668.45

Finding the Fourth Proportional to 85,848.96, 128,779.61 and 22,668.45

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Solution

The fourth proportional to 85,848.96, 128,779.61 and 22,668.45 is: 34,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,848.96 : 128,779.61 = 22,668.45 : x
  2. Step 2: Convert to fraction form
    85,848.96/128,779.61 = 22,668.45/x
  3. Step 3: Cross multiply
    85,848.96x = 128,779.61 × 22,668.45
  4. Step 4: Simplify right side
    85,848.96x = 2,919,233,554.04
  5. Step 5: Solve for x
    x = 2,919,233,554.04/85,848.96
  6. Step 6: Final answer
    x = 34,004.30

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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.