Home / 76,438.54-105,480.48-42,444.96

Finding the Fourth Proportional to 76,438.54, 105,480.48 and 42,444.96

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Solution

The fourth proportional to 76,438.54, 105,480.48 and 42,444.96 is: 58,571.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,438.54 : 105,480.48 = 42,444.96 : x
  2. Step 2: Convert to fraction form
    76,438.54/105,480.48 = 42,444.96/x
  3. Step 3: Cross multiply
    76,438.54x = 105,480.48 × 42,444.96
  4. Step 4: Simplify right side
    76,438.54x = 4,477,114,754.38
  5. Step 5: Solve for x
    x = 4,477,114,754.38/76,438.54
  6. Step 6: Final answer
    x = 58,571.43

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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.