Home / 86,765.08-119,738.06-49,041.72

Finding the Fourth Proportional to 86,765.08, 119,738.06 and 49,041.72

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Solution

The fourth proportional to 86,765.08, 119,738.06 and 49,041.72 is: 67,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,765.08 : 119,738.06 = 49,041.72 : x
  2. Step 2: Convert to fraction form
    86,765.08/119,738.06 = 49,041.72/x
  3. Step 3: Cross multiply
    86,765.08x = 119,738.06 × 49,041.72
  4. Step 4: Simplify right side
    86,765.08x = 5,872,160,411.86
  5. Step 5: Solve for x
    x = 5,872,160,411.86/86,765.08
  6. Step 6: Final answer
    x = 67,678.85

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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.