Home / 88,269.39-121,809.18-47,982.15

Finding the Fourth Proportional to 88,269.39, 121,809.18 and 47,982.15

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Solution

The fourth proportional to 88,269.39, 121,809.18 and 47,982.15 is: 66,213.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,269.39 : 121,809.18 = 47,982.15 : x
  2. Step 2: Convert to fraction form
    88,269.39/121,809.18 = 47,982.15/x
  3. Step 3: Cross multiply
    88,269.39x = 121,809.18 × 47,982.15
  4. Step 4: Simplify right side
    88,269.39x = 5,844,666,346.14
  5. Step 5: Solve for x
    x = 5,844,666,346.14/88,269.39
  6. Step 6: Final answer
    x = 66,213.97

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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.