Home / 91,395.80-126,125.34-51,109.10

Finding the Fourth Proportional to 91,395.80, 126,125.34 and 51,109.10

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Solution

The fourth proportional to 91,395.80, 126,125.34 and 51,109.10 is: 70,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,395.80 : 126,125.34 = 51,109.10 : x
  2. Step 2: Convert to fraction form
    91,395.80/126,125.34 = 51,109.10/x
  3. Step 3: Cross multiply
    91,395.80x = 126,125.34 × 51,109.10
  4. Step 4: Simplify right side
    91,395.80x = 6,446,152,614.59
  5. Step 5: Solve for x
    x = 6,446,152,614.59/91,395.80
  6. Step 6: Final answer
    x = 70,530.07

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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.