Home / 84,299.04-116,188.56-65,400.48

Finding the Fourth Proportional to 84,299.04, 116,188.56 and 65,400.48

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Solution

The fourth proportional to 84,299.04, 116,188.56 and 65,400.48 is: 90,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,299.04 : 116,188.56 = 65,400.48 : x
  2. Step 2: Convert to fraction form
    84,299.04/116,188.56 = 65,400.48/x
  3. Step 3: Cross multiply
    84,299.04x = 116,188.56 × 65,400.48
  4. Step 4: Simplify right side
    84,299.04x = 7,598,787,594.51
  5. Step 5: Solve for x
    x = 7,598,787,594.51/84,299.04
  6. Step 6: Final answer
    x = 90,140.86

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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.