Home / 91,315.37-126,015.01-51,029.15

Finding the Fourth Proportional to 91,315.37, 126,015.01 and 51,029.15

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Solution

The fourth proportional to 91,315.37, 126,015.01 and 51,029.15 is: 70,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,315.37 : 126,015.01 = 51,029.15 : x
  2. Step 2: Convert to fraction form
    91,315.37/126,015.01 = 51,029.15/x
  3. Step 3: Cross multiply
    91,315.37x = 126,015.01 × 51,029.15
  4. Step 4: Simplify right side
    91,315.37x = 6,430,438,089.89
  5. Step 5: Solve for x
    x = 6,430,438,089.89/91,315.37
  6. Step 6: Final answer
    x = 70,420.10

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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.