Home / 75,970.80-104,839.38-41,981.76

Finding the Fourth Proportional to 75,970.80, 104,839.38 and 41,981.76

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Solution

The fourth proportional to 75,970.80, 104,839.38 and 41,981.76 is: 57,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,970.80 : 104,839.38 = 41,981.76 : x
  2. Step 2: Convert to fraction form
    75,970.80/104,839.38 = 41,981.76/x
  3. Step 3: Cross multiply
    75,970.80x = 104,839.38 × 41,981.76
  4. Step 4: Simplify right side
    75,970.80x = 4,401,341,689.71
  5. Step 5: Solve for x
    x = 4,401,341,689.71/75,970.80
  6. Step 6: Final answer
    x = 57,934.65

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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.