Home / 70,039.99-105,011.38-25,660.63

Finding the Fourth Proportional to 70,039.99, 105,011.38 and 25,660.63

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Solution

The fourth proportional to 70,039.99, 105,011.38 and 25,660.63 is: 38,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.99 : 105,011.38 = 25,660.63 : x
  2. Step 2: Convert to fraction form
    70,039.99/105,011.38 = 25,660.63/x
  3. Step 3: Cross multiply
    70,039.99x = 105,011.38 × 25,660.63
  4. Step 4: Simplify right side
    70,039.99x = 2,694,657,514.61
  5. Step 5: Solve for x
    x = 2,694,657,514.61/70,039.99
  6. Step 6: Final answer
    x = 38,473.13

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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.