Home / 76,228.80-105,201.99-42,240.69

Finding the Fourth Proportional to 76,228.80, 105,201.99 and 42,240.69

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Solution

The fourth proportional to 76,228.80, 105,201.99 and 42,240.69 is: 58,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,228.80 : 105,201.99 = 42,240.69 : x
  2. Step 2: Convert to fraction form
    76,228.80/105,201.99 = 42,240.69/x
  3. Step 3: Cross multiply
    76,228.80x = 105,201.99 × 42,240.69
  4. Step 4: Simplify right side
    76,228.80x = 4,443,804,646.97
  5. Step 5: Solve for x
    x = 4,443,804,646.97/76,228.80
  6. Step 6: Final answer
    x = 58,295.62

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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.