Home / 76,051.12-104,840.76-52,139.92

Finding the Fourth Proportional to 76,051.12, 104,840.76 and 52,139.92

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Solution

The fourth proportional to 76,051.12, 104,840.76 and 52,139.92 is: 71,877.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,051.12 : 104,840.76 = 52,139.92 : x
  2. Step 2: Convert to fraction form
    76,051.12/104,840.76 = 52,139.92/x
  3. Step 3: Cross multiply
    76,051.12x = 104,840.76 × 52,139.92
  4. Step 4: Simplify right side
    76,051.12x = 5,466,388,839.14
  5. Step 5: Solve for x
    x = 5,466,388,839.14/76,051.12
  6. Step 6: Final answer
    x = 71,877.82

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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.