Home / 76,986.32-106,235.08-42,992.17

Finding the Fourth Proportional to 76,986.32, 106,235.08 and 42,992.17

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Solution

The fourth proportional to 76,986.32, 106,235.08 and 42,992.17 is: 59,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,986.32 : 106,235.08 = 42,992.17 : x
  2. Step 2: Convert to fraction form
    76,986.32/106,235.08 = 42,992.17/x
  3. Step 3: Cross multiply
    76,986.32x = 106,235.08 × 42,992.17
  4. Step 4: Simplify right side
    76,986.32x = 4,567,276,246.26
  5. Step 5: Solve for x
    x = 4,567,276,246.26/76,986.32
  6. Step 6: Final answer
    x = 59,325.82

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1.5x scale

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.