Home / 72,240.48-99,707.42-43,955.28

Finding the Fourth Proportional to 72,240.48, 99,707.42 and 43,955.28

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Solution

The fourth proportional to 72,240.48, 99,707.42 and 43,955.28 is: 60,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,240.48 : 99,707.42 = 43,955.28 : x
  2. Step 2: Convert to fraction form
    72,240.48/99,707.42 = 43,955.28/x
  3. Step 3: Cross multiply
    72,240.48x = 99,707.42 × 43,955.28
  4. Step 4: Simplify right side
    72,240.48x = 4,382,667,564.18
  5. Step 5: Solve for x
    x = 4,382,667,564.18/72,240.48
  6. Step 6: Final answer
    x = 60,667.75

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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.