Home / 86,109.43-129,166.59-23,779.93

Finding the Fourth Proportional to 86,109.43, 129,166.59 and 23,779.93

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Solution

The fourth proportional to 86,109.43, 129,166.59 and 23,779.93 is: 35,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,109.43 : 129,166.59 = 23,779.93 : x
  2. Step 2: Convert to fraction form
    86,109.43/129,166.59 = 23,779.93/x
  3. Step 3: Cross multiply
    86,109.43x = 129,166.59 × 23,779.93
  4. Step 4: Simplify right side
    86,109.43x = 3,071,572,468.54
  5. Step 5: Solve for x
    x = 3,071,572,468.54/86,109.43
  6. Step 6: Final answer
    x = 35,670.57

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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.