Home / 91,448.05-126,203.21-51,159.41

Finding the Fourth Proportional to 91,448.05, 126,203.21 and 51,159.41

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Solution

The fourth proportional to 91,448.05, 126,203.21 and 51,159.41 is: 70,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,448.05 : 126,203.21 = 51,159.41 : x
  2. Step 2: Convert to fraction form
    91,448.05/126,203.21 = 51,159.41/x
  3. Step 3: Cross multiply
    91,448.05x = 126,203.21 × 51,159.41
  4. Step 4: Simplify right side
    91,448.05x = 6,456,481,763.71
  5. Step 5: Solve for x
    x = 6,456,481,763.71/91,448.05
  6. Step 6: Final answer
    x = 70,602.73

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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.