Home / 86,838.59-130,023.67-56,778.27

Finding the Fourth Proportional to 86,838.59, 130,023.67 and 56,778.27

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Solution

The fourth proportional to 86,838.59, 130,023.67 and 56,778.27 is: 85,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,838.59 : 130,023.67 = 56,778.27 : x
  2. Step 2: Convert to fraction form
    86,838.59/130,023.67 = 56,778.27/x
  3. Step 3: Cross multiply
    86,838.59x = 130,023.67 × 56,778.27
  4. Step 4: Simplify right side
    86,838.59x = 7,382,519,041.65
  5. Step 5: Solve for x
    x = 7,382,519,041.65/86,838.59
  6. Step 6: Final answer
    x = 85,014.27

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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.