Home / 53,925.40-80,859.30-18,866.20

Finding the Fourth Proportional to 53,925.40, 80,859.30 and 18,866.20

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Solution

The fourth proportional to 53,925.40, 80,859.30 and 18,866.20 is: 28,289.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,925.40 : 80,859.30 = 18,866.20 : x
  2. Step 2: Convert to fraction form
    53,925.40/80,859.30 = 18,866.20/x
  3. Step 3: Cross multiply
    53,925.40x = 80,859.30 × 18,866.20
  4. Step 4: Simplify right side
    53,925.40x = 1,525,507,725.66
  5. Step 5: Solve for x
    x = 1,525,507,725.66/53,925.40
  6. Step 6: Final answer
    x = 28,289.22

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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.