Home / 84,742.56-127,085.94-28,567.50

Finding the Fourth Proportional to 84,742.56, 127,085.94 and 28,567.50

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Solution

The fourth proportional to 84,742.56, 127,085.94 and 28,567.50 is: 42,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,742.56 : 127,085.94 = 28,567.50 : x
  2. Step 2: Convert to fraction form
    84,742.56/127,085.94 = 28,567.50/x
  3. Step 3: Cross multiply
    84,742.56x = 127,085.94 × 28,567.50
  4. Step 4: Simplify right side
    84,742.56x = 3,630,527,590.95
  5. Step 5: Solve for x
    x = 3,630,527,590.95/84,742.56
  6. Step 6: Final answer
    x = 42,841.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.