Home / 91,314.37-126,011.39-51,028.46

Finding the Fourth Proportional to 91,314.37, 126,011.39 and 51,028.46

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Solution

The fourth proportional to 91,314.37, 126,011.39 and 51,028.46 is: 70,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,314.37 : 126,011.39 = 51,028.46 : x
  2. Step 2: Convert to fraction form
    91,314.37/126,011.39 = 51,028.46/x
  3. Step 3: Cross multiply
    91,314.37x = 126,011.39 × 51,028.46
  4. Step 4: Simplify right side
    91,314.37x = 6,430,167,174.16
  5. Step 5: Solve for x
    x = 6,430,167,174.16/91,314.37
  6. Step 6: Final answer
    x = 70,417.91

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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.