Home / 75,084.54-103,628.31-42,819.23

Finding the Fourth Proportional to 75,084.54, 103,628.31 and 42,819.23

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Solution

The fourth proportional to 75,084.54, 103,628.31 and 42,819.23 is: 59,097.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,084.54 : 103,628.31 = 42,819.23 : x
  2. Step 2: Convert to fraction form
    75,084.54/103,628.31 = 42,819.23/x
  3. Step 3: Cross multiply
    75,084.54x = 103,628.31 × 42,819.23
  4. Step 4: Simplify right side
    75,084.54x = 4,437,284,779.76
  5. Step 5: Solve for x
    x = 4,437,284,779.76/75,084.54
  6. Step 6: Final answer
    x = 59,097.18

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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.