Home / 91,673.76-126,507.36-51,390.14

Finding the Fourth Proportional to 91,673.76, 126,507.36 and 51,390.14

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Solution

The fourth proportional to 91,673.76, 126,507.36 and 51,390.14 is: 70,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,673.76 : 126,507.36 = 51,390.14 : x
  2. Step 2: Convert to fraction form
    91,673.76/126,507.36 = 51,390.14/x
  3. Step 3: Cross multiply
    91,673.76x = 126,507.36 × 51,390.14
  4. Step 4: Simplify right side
    91,673.76x = 6,501,230,308.89
  5. Step 5: Solve for x
    x = 6,501,230,308.89/91,673.76
  6. Step 6: Final answer
    x = 70,917.02

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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.