Home / 86,185.72-129,246.58-30,011.41

Finding the Fourth Proportional to 86,185.72, 129,246.58 and 30,011.41

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Solution

The fourth proportional to 86,185.72, 129,246.58 and 30,011.41 is: 45,005.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,185.72 : 129,246.58 = 30,011.41 : x
  2. Step 2: Convert to fraction form
    86,185.72/129,246.58 = 30,011.41/x
  3. Step 3: Cross multiply
    86,185.72x = 129,246.58 × 30,011.41
  4. Step 4: Simplify right side
    86,185.72x = 3,878,871,307.19
  5. Step 5: Solve for x
    x = 3,878,871,307.19/86,185.72
  6. Step 6: Final answer
    x = 45,005.97

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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.