Home / 76,529.07-105,638.77-57,463.92

Finding the Fourth Proportional to 76,529.07, 105,638.77 and 57,463.92

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Solution

The fourth proportional to 76,529.07, 105,638.77 and 57,463.92 is: 79,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,529.07 : 105,638.77 = 57,463.92 : x
  2. Step 2: Convert to fraction form
    76,529.07/105,638.77 = 57,463.92/x
  3. Step 3: Cross multiply
    76,529.07x = 105,638.77 × 57,463.92
  4. Step 4: Simplify right side
    76,529.07x = 6,070,418,235.94
  5. Step 5: Solve for x
    x = 6,070,418,235.94/76,529.07
  6. Step 6: Final answer
    x = 79,321.73

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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.