Home / 76,862.47-106,029.87-62,538.31

Finding the Fourth Proportional to 76,862.47, 106,029.87 and 62,538.31

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Solution

The fourth proportional to 76,862.47, 106,029.87 and 62,538.31 is: 86,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,862.47 : 106,029.87 = 62,538.31 : x
  2. Step 2: Convert to fraction form
    76,862.47/106,029.87 = 62,538.31/x
  3. Step 3: Cross multiply
    76,862.47x = 106,029.87 × 62,538.31
  4. Step 4: Simplify right side
    76,862.47x = 6,630,928,879.32
  5. Step 5: Solve for x
    x = 6,630,928,879.32/76,862.47
  6. Step 6: Final answer
    x = 86,270.05

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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.