Home / 71,028.50-98,013.75-42,345.99

Finding the Fourth Proportional to 71,028.50, 98,013.75 and 42,345.99

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Solution

The fourth proportional to 71,028.50, 98,013.75 and 42,345.99 is: 58,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,028.50 : 98,013.75 = 42,345.99 : x
  2. Step 2: Convert to fraction form
    71,028.50/98,013.75 = 42,345.99/x
  3. Step 3: Cross multiply
    71,028.50x = 98,013.75 × 42,345.99
  4. Step 4: Simplify right side
    71,028.50x = 4,150,489,118.57
  5. Step 5: Solve for x
    x = 4,150,489,118.57/71,028.50
  6. Step 6: Final answer
    x = 58,434.14

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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.