Home / 52,326.36-78,489.72-12,884.40

Finding the Fourth Proportional to 52,326.36, 78,489.72 and 12,884.40

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Solution

The fourth proportional to 52,326.36, 78,489.72 and 12,884.40 is: 19,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,326.36 : 78,489.72 = 12,884.40 : x
  2. Step 2: Convert to fraction form
    52,326.36/78,489.72 = 12,884.40/x
  3. Step 3: Cross multiply
    52,326.36x = 78,489.72 × 12,884.40
  4. Step 4: Simplify right side
    52,326.36x = 1,011,292,948.37
  5. Step 5: Solve for x
    x = 1,011,292,948.37/52,326.36
  6. Step 6: Final answer
    x = 19,326.64

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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.