Home / 91,298.88-125,945.28-57,784.32

Finding the Fourth Proportional to 91,298.88, 125,945.28 and 57,784.32

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Solution

The fourth proportional to 91,298.88, 125,945.28 and 57,784.32 is: 79,712.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,298.88 : 125,945.28 = 57,784.32 : x
  2. Step 2: Convert to fraction form
    91,298.88/125,945.28 = 57,784.32/x
  3. Step 3: Cross multiply
    91,298.88x = 125,945.28 × 57,784.32
  4. Step 4: Simplify right side
    91,298.88x = 7,277,662,362.01
  5. Step 5: Solve for x
    x = 7,277,662,362.01/91,298.88
  6. Step 6: Final answer
    x = 79,712.50

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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.