Home / 86,519.36-129,779.28-24,190.40

Finding the Fourth Proportional to 86,519.36, 129,779.28 and 24,190.40

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Solution

The fourth proportional to 86,519.36, 129,779.28 and 24,190.40 is: 36,285.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,519.36 : 129,779.28 = 24,190.40 : x
  2. Step 2: Convert to fraction form
    86,519.36/129,779.28 = 24,190.40/x
  3. Step 3: Cross multiply
    86,519.36x = 129,779.28 × 24,190.40
  4. Step 4: Simplify right side
    86,519.36x = 3,139,412,694.91
  5. Step 5: Solve for x
    x = 3,139,412,694.91/86,519.36
  6. Step 6: Final answer
    x = 36,285.67

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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.