Home / 76,675.64-105,777.42-55,421.24

Finding the Fourth Proportional to 76,675.64, 105,777.42 and 55,421.24

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Solution

The fourth proportional to 76,675.64, 105,777.42 and 55,421.24 is: 76,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,675.64 : 105,777.42 = 55,421.24 : x
  2. Step 2: Convert to fraction form
    76,675.64/105,777.42 = 55,421.24/x
  3. Step 3: Cross multiply
    76,675.64x = 105,777.42 × 55,421.24
  4. Step 4: Simplify right side
    76,675.64x = 5,862,315,780.40
  5. Step 5: Solve for x
    x = 5,862,315,780.40/76,675.64
  6. Step 6: Final answer
    x = 76,456.04

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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.