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Finding the Fourth Proportional to 76,280.76, 114,491.52 and 38,867.58

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Solution

The fourth proportional to 76,280.76, 114,491.52 and 38,867.58 is: 58,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,280.76 : 114,491.52 = 38,867.58 : x
  2. Step 2: Convert to fraction form
    76,280.76/114,491.52 = 38,867.58/x
  3. Step 3: Cross multiply
    76,280.76x = 114,491.52 × 38,867.58
  4. Step 4: Simplify right side
    76,280.76x = 4,450,008,312.92
  5. Step 5: Solve for x
    x = 4,450,008,312.92/76,280.76
  6. Step 6: Final answer
    x = 58,337.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.