Home / 76,925.40-115,323.30-39,989.40

Finding the Fourth Proportional to 76,925.40, 115,323.30 and 39,989.40

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Solution

The fourth proportional to 76,925.40, 115,323.30 and 39,989.40 is: 59,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,925.40 : 115,323.30 = 39,989.40 : x
  2. Step 2: Convert to fraction form
    76,925.40/115,323.30 = 39,989.40/x
  3. Step 3: Cross multiply
    76,925.40x = 115,323.30 × 39,989.40
  4. Step 4: Simplify right side
    76,925.40x = 4,611,709,573.02
  5. Step 5: Solve for x
    x = 4,611,709,573.02/76,925.40
  6. Step 6: Final answer
    x = 59,950.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.