Home / 91,507.12-126,273.98-51,214.10

Finding the Fourth Proportional to 91,507.12, 126,273.98 and 51,214.10

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Solution

The fourth proportional to 91,507.12, 126,273.98 and 51,214.10 is: 70,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,507.12 : 126,273.98 = 51,214.10 : x
  2. Step 2: Convert to fraction form
    91,507.12/126,273.98 = 51,214.10/x
  3. Step 3: Cross multiply
    91,507.12x = 126,273.98 × 51,214.10
  4. Step 4: Simplify right side
    91,507.12x = 6,467,008,239.12
  5. Step 5: Solve for x
    x = 6,467,008,239.12/91,507.12
  6. Step 6: Final answer
    x = 70,672.19

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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.