Home / 105,570.32-145,687.07-57,824.46

Finding the Fourth Proportional to 105,570.32, 145,687.07 and 57,824.46

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Solution

The fourth proportional to 105,570.32, 145,687.07 and 57,824.46 is: 79,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,570.32 : 145,687.07 = 57,824.46 : x
  2. Step 2: Convert to fraction form
    105,570.32/145,687.07 = 57,824.46/x
  3. Step 3: Cross multiply
    105,570.32x = 145,687.07 × 57,824.46
  4. Step 4: Simplify right side
    105,570.32x = 8,424,276,296.29
  5. Step 5: Solve for x
    x = 8,424,276,296.29/105,570.32
  6. Step 6: Final answer
    x = 79,797.78

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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.