Home / 86,304.96-129,488.60-30,153.36

Finding the Fourth Proportional to 86,304.96, 129,488.60 and 30,153.36

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Solution

The fourth proportional to 86,304.96, 129,488.60 and 30,153.36 is: 45,240.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,304.96 : 129,488.60 = 30,153.36 : x
  2. Step 2: Convert to fraction form
    86,304.96/129,488.60 = 30,153.36/x
  3. Step 3: Cross multiply
    86,304.96x = 129,488.60 × 30,153.36
  4. Step 4: Simplify right side
    86,304.96x = 3,904,516,371.70
  5. Step 5: Solve for x
    x = 3,904,516,371.70/86,304.96
  6. Step 6: Final answer
    x = 45,240.93

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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.