Home / 84,595.12-116,742.40-54,390.35

Finding the Fourth Proportional to 84,595.12, 116,742.40 and 54,390.35

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Solution

The fourth proportional to 84,595.12, 116,742.40 and 54,390.35 is: 75,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,595.12 : 116,742.40 = 54,390.35 : x
  2. Step 2: Convert to fraction form
    84,595.12/116,742.40 = 54,390.35/x
  3. Step 3: Cross multiply
    84,595.12x = 116,742.40 × 54,390.35
  4. Step 4: Simplify right side
    84,595.12x = 6,349,660,151.72
  5. Step 5: Solve for x
    x = 6,349,660,151.72/84,595.12
  6. Step 6: Final answer
    x = 75,059.42

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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.