Home / 84,710.45-127,077.40-28,566.61

Finding the Fourth Proportional to 84,710.45, 127,077.40 and 28,566.61

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Solution

The fourth proportional to 84,710.45, 127,077.40 and 28,566.61 is: 42,853.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,710.45 : 127,077.40 = 28,566.61 : x
  2. Step 2: Convert to fraction form
    84,710.45/127,077.40 = 28,566.61/x
  3. Step 3: Cross multiply
    84,710.45x = 127,077.40 × 28,566.61
  4. Step 4: Simplify right side
    84,710.45x = 3,630,170,525.61
  5. Step 5: Solve for x
    x = 3,630,170,525.61/84,710.45
  6. Step 6: Final answer
    x = 42,853.87

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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.