Home / 76,206.40-105,168.64-45,991.24

Finding the Fourth Proportional to 76,206.40, 105,168.64 and 45,991.24

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Solution

The fourth proportional to 76,206.40, 105,168.64 and 45,991.24 is: 63,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,206.40 : 105,168.64 = 45,991.24 : x
  2. Step 2: Convert to fraction form
    76,206.40/105,168.64 = 45,991.24/x
  3. Step 3: Cross multiply
    76,206.40x = 105,168.64 × 45,991.24
  4. Step 4: Simplify right side
    76,206.40x = 4,836,836,162.71
  5. Step 5: Solve for x
    x = 4,836,836,162.71/76,206.40
  6. Step 6: Final answer
    x = 63,470.21

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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.