Home / 86,913.72-119,939.58-47,169.72

Finding the Fourth Proportional to 86,913.72, 119,939.58 and 47,169.72

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Solution

The fourth proportional to 86,913.72, 119,939.58 and 47,169.72 is: 65,093.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,913.72 : 119,939.58 = 47,169.72 : x
  2. Step 2: Convert to fraction form
    86,913.72/119,939.58 = 47,169.72/x
  3. Step 3: Cross multiply
    86,913.72x = 119,939.58 × 47,169.72
  4. Step 4: Simplify right side
    86,913.72x = 5,657,516,405.52
  5. Step 5: Solve for x
    x = 5,657,516,405.52/86,913.72
  6. Step 6: Final answer
    x = 65,093.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.