Home / 61,070.15-91,618.31-18,949.33

Finding the Fourth Proportional to 61,070.15, 91,618.31 and 18,949.33

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Solution

The fourth proportional to 61,070.15, 91,618.31 and 18,949.33 is: 28,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,070.15 : 91,618.31 = 18,949.33 : x
  2. Step 2: Convert to fraction form
    61,070.15/91,618.31 = 18,949.33/x
  3. Step 3: Cross multiply
    61,070.15x = 91,618.31 × 18,949.33
  4. Step 4: Simplify right side
    61,070.15x = 1,736,105,590.23
  5. Step 5: Solve for x
    x = 1,736,105,590.23/61,070.15
  6. Step 6: Final answer
    x = 28,428.06

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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.