Home / 86,221.36-129,317.28-23,877.28

Finding the Fourth Proportional to 86,221.36, 129,317.28 and 23,877.28

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Solution

The fourth proportional to 86,221.36, 129,317.28 and 23,877.28 is: 35,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,221.36 : 129,317.28 = 23,877.28 : x
  2. Step 2: Convert to fraction form
    86,221.36/129,317.28 = 23,877.28/x
  3. Step 3: Cross multiply
    86,221.36x = 129,317.28 × 23,877.28
  4. Step 4: Simplify right side
    86,221.36x = 3,087,744,903.40
  5. Step 5: Solve for x
    x = 3,087,744,903.40/86,221.36
  6. Step 6: Final answer
    x = 35,811.83

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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.