Home / 86,351.31-129,516.35-23,176.40

Finding the Fourth Proportional to 86,351.31, 129,516.35 and 23,176.40

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Solution

The fourth proportional to 86,351.31, 129,516.35 and 23,176.40 is: 34,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,351.31 : 129,516.35 = 23,176.40 : x
  2. Step 2: Convert to fraction form
    86,351.31/129,516.35 = 23,176.40/x
  3. Step 3: Cross multiply
    86,351.31x = 129,516.35 × 23,176.40
  4. Step 4: Simplify right side
    86,351.31x = 3,001,721,970.68
  5. Step 5: Solve for x
    x = 3,001,721,970.68/86,351.31
  6. Step 6: Final answer
    x = 34,761.74

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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.