Home / 91,302.96-125,998.70-51,018.42

Finding the Fourth Proportional to 91,302.96, 125,998.70 and 51,018.42

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Solution

The fourth proportional to 91,302.96, 125,998.70 and 51,018.42 is: 70,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,302.96 : 125,998.70 = 51,018.42 : x
  2. Step 2: Convert to fraction form
    91,302.96/125,998.70 = 51,018.42/x
  3. Step 3: Cross multiply
    91,302.96x = 125,998.70 × 51,018.42
  4. Step 4: Simplify right side
    91,302.96x = 6,428,254,596.05
  5. Step 5: Solve for x
    x = 6,428,254,596.05/91,302.96
  6. Step 6: Final answer
    x = 70,405.76

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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.