Home / 76,275.76-105,255.24-42,283.92

Finding the Fourth Proportional to 76,275.76, 105,255.24 and 42,283.92

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Solution

The fourth proportional to 76,275.76, 105,255.24 and 42,283.92 is: 58,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,275.76 : 105,255.24 = 42,283.92 : x
  2. Step 2: Convert to fraction form
    76,275.76/105,255.24 = 42,283.92/x
  3. Step 3: Cross multiply
    76,275.76x = 105,255.24 × 42,283.92
  4. Step 4: Simplify right side
    76,275.76x = 4,450,604,147.74
  5. Step 5: Solve for x
    x = 4,450,604,147.74/76,275.76
  6. Step 6: Final answer
    x = 58,348.87

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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.