Home / 43,112.54-64,678.54-13,530.26

Finding the Fourth Proportional to 43,112.54, 64,678.54 and 13,530.26

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Solution

The fourth proportional to 43,112.54, 64,678.54 and 13,530.26 is: 20,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,112.54 : 64,678.54 = 13,530.26 : x
  2. Step 2: Convert to fraction form
    43,112.54/64,678.54 = 13,530.26/x
  3. Step 3: Cross multiply
    43,112.54x = 64,678.54 × 13,530.26
  4. Step 4: Simplify right side
    43,112.54x = 875,117,462.62
  5. Step 5: Solve for x
    x = 875,117,462.62/43,112.54
  6. Step 6: Final answer
    x = 20,298.44

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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.