Home / 91,212.32-125,875.06-57,222.25

Finding the Fourth Proportional to 91,212.32, 125,875.06 and 57,222.25

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Solution

The fourth proportional to 91,212.32, 125,875.06 and 57,222.25 is: 78,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.32 : 125,875.06 = 57,222.25 : x
  2. Step 2: Convert to fraction form
    91,212.32/125,875.06 = 57,222.25/x
  3. Step 3: Cross multiply
    91,212.32x = 125,875.06 × 57,222.25
  4. Step 4: Simplify right side
    91,212.32x = 7,202,853,694.34
  5. Step 5: Solve for x
    x = 7,202,853,694.34/91,212.32
  6. Step 6: Final answer
    x = 78,967.99

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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.