Home / 76,328.04-105,311.16-49,471.68

Finding the Fourth Proportional to 76,328.04, 105,311.16 and 49,471.68

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Solution

The fourth proportional to 76,328.04, 105,311.16 and 49,471.68 is: 68,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328.04 : 105,311.16 = 49,471.68 : x
  2. Step 2: Convert to fraction form
    76,328.04/105,311.16 = 49,471.68/x
  3. Step 3: Cross multiply
    76,328.04x = 105,311.16 × 49,471.68
  4. Step 4: Simplify right side
    76,328.04x = 5,209,920,007.95
  5. Step 5: Solve for x
    x = 5,209,920,007.95/76,328.04
  6. Step 6: Final answer
    x = 68,256.96

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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.