Home / 68,390.60-94,341.10-40,090.84

Finding the Fourth Proportional to 68,390.60, 94,341.10 and 40,090.84

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Solution

The fourth proportional to 68,390.60, 94,341.10 and 40,090.84 is: 55,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,390.60 : 94,341.10 = 40,090.84 : x
  2. Step 2: Convert to fraction form
    68,390.60/94,341.10 = 40,090.84/x
  3. Step 3: Cross multiply
    68,390.60x = 94,341.10 × 40,090.84
  4. Step 4: Simplify right side
    68,390.60x = 3,782,213,945.52
  5. Step 5: Solve for x
    x = 3,782,213,945.52/68,390.60
  6. Step 6: Final answer
    x = 55,303.13

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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.