Home / 76,240.74-105,203.67-42,240.73

Finding the Fourth Proportional to 76,240.74, 105,203.67 and 42,240.73

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Solution

The fourth proportional to 76,240.74, 105,203.67 and 42,240.73 is: 58,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,240.74 : 105,203.67 = 42,240.73 : x
  2. Step 2: Convert to fraction form
    76,240.74/105,203.67 = 42,240.73/x
  3. Step 3: Cross multiply
    76,240.74x = 105,203.67 × 42,240.73
  4. Step 4: Simplify right side
    76,240.74x = 4,443,879,819.48
  5. Step 5: Solve for x
    x = 4,443,879,819.48/76,240.74
  6. Step 6: Final answer
    x = 58,287.47

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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.