Home / 56,709.18-78,127.65-40,766.04

Finding the Fourth Proportional to 56,709.18, 78,127.65 and 40,766.04

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Solution

The fourth proportional to 56,709.18, 78,127.65 and 40,766.04 is: 56,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,709.18 : 78,127.65 = 40,766.04 : x
  2. Step 2: Convert to fraction form
    56,709.18/78,127.65 = 40,766.04/x
  3. Step 3: Cross multiply
    56,709.18x = 78,127.65 × 40,766.04
  4. Step 4: Simplify right side
    56,709.18x = 3,184,954,905.01
  5. Step 5: Solve for x
    x = 3,184,954,905.01/56,709.18
  6. Step 6: Final answer
    x = 56,162.95

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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.