Home / 126,476.48-189,812.64-47,662.40

Finding the Fourth Proportional to 126,476.48, 189,812.64 and 47,662.40

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Solution

The fourth proportional to 126,476.48, 189,812.64 and 47,662.40 is: 71,530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,476.48 : 189,812.64 = 47,662.40 : x
  2. Step 2: Convert to fraction form
    126,476.48/189,812.64 = 47,662.40/x
  3. Step 3: Cross multiply
    126,476.48x = 189,812.64 × 47,662.40
  4. Step 4: Simplify right side
    126,476.48x = 9,046,925,972.74
  5. Step 5: Solve for x
    x = 9,046,925,972.74/126,476.48
  6. Step 6: Final answer
    x = 71,530.50

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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.