Home / 76,543.96-105,632.44-42,551.14

Finding the Fourth Proportional to 76,543.96, 105,632.44 and 42,551.14

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Solution

The fourth proportional to 76,543.96, 105,632.44 and 42,551.14 is: 58,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,543.96 : 105,632.44 = 42,551.14 : x
  2. Step 2: Convert to fraction form
    76,543.96/105,632.44 = 42,551.14/x
  3. Step 3: Cross multiply
    76,543.96x = 105,632.44 × 42,551.14
  4. Step 4: Simplify right side
    76,543.96x = 4,494,780,742.98
  5. Step 5: Solve for x
    x = 4,494,780,742.98/76,543.96
  6. Step 6: Final answer
    x = 58,721.56

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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.