Home / 85,930.08-118,658.84-53,719.76

Finding the Fourth Proportional to 85,930.08, 118,658.84 and 53,719.76

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Solution

The fourth proportional to 85,930.08, 118,658.84 and 53,719.76 is: 74,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,930.08 : 118,658.84 = 53,719.76 : x
  2. Step 2: Convert to fraction form
    85,930.08/118,658.84 = 53,719.76/x
  3. Step 3: Cross multiply
    85,930.08x = 118,658.84 × 53,719.76
  4. Step 4: Simplify right side
    85,930.08x = 6,374,323,544.79
  5. Step 5: Solve for x
    x = 6,374,323,544.79/85,930.08
  6. Step 6: Final answer
    x = 74,180.35

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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.