Home / 75,307.18-103,920.14-43,474.18

Finding the Fourth Proportional to 75,307.18, 103,920.14 and 43,474.18

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Solution

The fourth proportional to 75,307.18, 103,920.14 and 43,474.18 is: 59,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.18 : 103,920.14 = 43,474.18 : x
  2. Step 2: Convert to fraction form
    75,307.18/103,920.14 = 43,474.18/x
  3. Step 3: Cross multiply
    75,307.18x = 103,920.14 × 43,474.18
  4. Step 4: Simplify right side
    75,307.18x = 4,517,842,871.99
  5. Step 5: Solve for x
    x = 4,517,842,871.99/75,307.18
  6. Step 6: Final answer
    x = 59,992.19

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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.