Home / 76,190.13-105,136.65-43,901.81

Finding the Fourth Proportional to 76,190.13, 105,136.65 and 43,901.81

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Solution

The fourth proportional to 76,190.13, 105,136.65 and 43,901.81 is: 60,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,190.13 : 105,136.65 = 43,901.81 : x
  2. Step 2: Convert to fraction form
    76,190.13/105,136.65 = 43,901.81/x
  3. Step 3: Cross multiply
    76,190.13x = 105,136.65 × 43,901.81
  4. Step 4: Simplify right side
    76,190.13x = 4,615,688,487.14
  5. Step 5: Solve for x
    x = 4,615,688,487.14/76,190.13
  6. Step 6: Final answer
    x = 60,581.19

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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.