Home / 88,263.18-121,805.55-47,979.64

Finding the Fourth Proportional to 88,263.18, 121,805.55 and 47,979.64

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Solution

The fourth proportional to 88,263.18, 121,805.55 and 47,979.64 is: 66,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,263.18 : 121,805.55 = 47,979.64 : x
  2. Step 2: Convert to fraction form
    88,263.18/121,805.55 = 47,979.64/x
  3. Step 3: Cross multiply
    88,263.18x = 121,805.55 × 47,979.64
  4. Step 4: Simplify right side
    88,263.18x = 5,844,186,439.00
  5. Step 5: Solve for x
    x = 5,844,186,439.00/88,263.18
  6. Step 6: Final answer
    x = 66,213.19

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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.