Home / 105,276.24-145,286.46-57,531.60

Finding the Fourth Proportional to 105,276.24, 145,286.46 and 57,531.60

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Solution

The fourth proportional to 105,276.24, 145,286.46 and 57,531.60 is: 79,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,276.24 : 145,286.46 = 57,531.60 : x
  2. Step 2: Convert to fraction form
    105,276.24/145,286.46 = 57,531.60/x
  3. Step 3: Cross multiply
    105,276.24x = 145,286.46 × 57,531.60
  4. Step 4: Simplify right side
    105,276.24x = 8,358,562,502.14
  5. Step 5: Solve for x
    x = 8,358,562,502.14/105,276.24
  6. Step 6: Final answer
    x = 79,396.48

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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.