Home / 59,936.80-89,905.20-20,495.20

Finding the Fourth Proportional to 59,936.80, 89,905.20 and 20,495.20

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Solution

The fourth proportional to 59,936.80, 89,905.20 and 20,495.20 is: 30,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,936.80 : 89,905.20 = 20,495.20 : x
  2. Step 2: Convert to fraction form
    59,936.80/89,905.20 = 20,495.20/x
  3. Step 3: Cross multiply
    59,936.80x = 89,905.20 × 20,495.20
  4. Step 4: Simplify right side
    59,936.80x = 1,842,625,055.04
  5. Step 5: Solve for x
    x = 1,842,625,055.04/59,936.80
  6. Step 6: Final answer
    x = 30,742.80

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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.