Home / 91,395.93-126,125.51-51,109.23

Finding the Fourth Proportional to 91,395.93, 126,125.51 and 51,109.23

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Solution

The fourth proportional to 91,395.93, 126,125.51 and 51,109.23 is: 70,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,395.93 : 126,125.51 = 51,109.23 : x
  2. Step 2: Convert to fraction form
    91,395.93/126,125.51 = 51,109.23/x
  3. Step 3: Cross multiply
    91,395.93x = 126,125.51 × 51,109.23
  4. Step 4: Simplify right side
    91,395.93x = 6,446,177,196.60
  5. Step 5: Solve for x
    x = 6,446,177,196.60/91,395.93
  6. Step 6: Final answer
    x = 70,530.25

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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.