Home / 91,117.37-125,735.90-57,124.51

Finding the Fourth Proportional to 91,117.37, 125,735.90 and 57,124.51

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Solution

The fourth proportional to 91,117.37, 125,735.90 and 57,124.51 is: 78,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,117.37 : 125,735.90 = 57,124.51 : x
  2. Step 2: Convert to fraction form
    91,117.37/125,735.90 = 57,124.51/x
  3. Step 3: Cross multiply
    91,117.37x = 125,735.90 × 57,124.51
  4. Step 4: Simplify right side
    91,117.37x = 7,182,601,076.95
  5. Step 5: Solve for x
    x = 7,182,601,076.95/91,117.37
  6. Step 6: Final answer
    x = 78,828.01

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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.