Home / 91,400.37-126,135.95-51,114.03

Finding the Fourth Proportional to 91,400.37, 126,135.95 and 51,114.03

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Solution

The fourth proportional to 91,400.37, 126,135.95 and 51,114.03 is: 70,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,400.37 : 126,135.95 = 51,114.03 : x
  2. Step 2: Convert to fraction form
    91,400.37/126,135.95 = 51,114.03/x
  3. Step 3: Cross multiply
    91,400.37x = 126,135.95 × 51,114.03
  4. Step 4: Simplify right side
    91,400.37x = 6,447,316,476.81
  5. Step 5: Solve for x
    x = 6,447,316,476.81/91,400.37
  6. Step 6: Final answer
    x = 70,539.28

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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.