Home / 85,582.54-118,103.21-47,856.79

Finding the Fourth Proportional to 85,582.54, 118,103.21 and 47,856.79

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Solution

The fourth proportional to 85,582.54, 118,103.21 and 47,856.79 is: 66,041.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,582.54 : 118,103.21 = 47,856.79 : x
  2. Step 2: Convert to fraction form
    85,582.54/118,103.21 = 47,856.79/x
  3. Step 3: Cross multiply
    85,582.54x = 118,103.21 × 47,856.79
  4. Step 4: Simplify right side
    85,582.54x = 5,652,039,928.78
  5. Step 5: Solve for x
    x = 5,652,039,928.78/85,582.54
  6. Step 6: Final answer
    x = 66,041.98

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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.