Home / 91,675.56-126,518.12-51,389.34

Finding the Fourth Proportional to 91,675.56, 126,518.12 and 51,389.34

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Solution

The fourth proportional to 91,675.56, 126,518.12 and 51,389.34 is: 70,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,675.56 : 126,518.12 = 51,389.34 : x
  2. Step 2: Convert to fraction form
    91,675.56/126,518.12 = 51,389.34/x
  3. Step 3: Cross multiply
    91,675.56x = 126,518.12 × 51,389.34
  4. Step 4: Simplify right side
    91,675.56x = 6,501,682,684.84
  5. Step 5: Solve for x
    x = 6,501,682,684.84/91,675.56
  6. Step 6: Final answer
    x = 70,920.57

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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.