Home / 79,386.48-109,553.58-43,580.16

Finding the Fourth Proportional to 79,386.48, 109,553.58 and 43,580.16

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Solution

The fourth proportional to 79,386.48, 109,553.58 and 43,580.16 is: 60,140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,386.48 : 109,553.58 = 43,580.16 : x
  2. Step 2: Convert to fraction form
    79,386.48/109,553.58 = 43,580.16/x
  3. Step 3: Cross multiply
    79,386.48x = 109,553.58 × 43,580.16
  4. Step 4: Simplify right side
    79,386.48x = 4,774,362,544.97
  5. Step 5: Solve for x
    x = 4,774,362,544.97/79,386.48
  6. Step 6: Final answer
    x = 60,140.75

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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.