Home / 81,205.60-121,725.36-46,071.04

Finding the Fourth Proportional to 81,205.60, 121,725.36 and 46,071.04

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Solution

The fourth proportional to 81,205.60, 121,725.36 and 46,071.04 is: 69,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,205.60 : 121,725.36 = 46,071.04 : x
  2. Step 2: Convert to fraction form
    81,205.60/121,725.36 = 46,071.04/x
  3. Step 3: Cross multiply
    81,205.60x = 121,725.36 × 46,071.04
  4. Step 4: Simplify right side
    81,205.60x = 5,608,013,929.57
  5. Step 5: Solve for x
    x = 5,608,013,929.57/81,205.60
  6. Step 6: Final answer
    x = 69,059.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.