Home / 91,206.15-125,866.61-57,216.07

Finding the Fourth Proportional to 91,206.15, 125,866.61 and 57,216.07

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Solution

The fourth proportional to 91,206.15, 125,866.61 and 57,216.07 is: 78,959.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,206.15 : 125,866.61 = 57,216.07 : x
  2. Step 2: Convert to fraction form
    91,206.15/125,866.61 = 57,216.07/x
  3. Step 3: Cross multiply
    91,206.15x = 125,866.61 × 57,216.07
  4. Step 4: Simplify right side
    91,206.15x = 7,201,592,768.42
  5. Step 5: Solve for x
    x = 7,201,592,768.42/91,206.15
  6. Step 6: Final answer
    x = 78,959.51

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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.