Home / 53,966.91-80,901.36-18,887.43

Finding the Fourth Proportional to 53,966.91, 80,901.36 and 18,887.43

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Solution

The fourth proportional to 53,966.91, 80,901.36 and 18,887.43 is: 28,313.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,966.91 : 80,901.36 = 18,887.43 : x
  2. Step 2: Convert to fraction form
    53,966.91/80,901.36 = 18,887.43/x
  3. Step 3: Cross multiply
    53,966.91x = 80,901.36 × 18,887.43
  4. Step 4: Simplify right side
    53,966.91x = 1,528,018,726.69
  5. Step 5: Solve for x
    x = 1,528,018,726.69/53,966.91
  6. Step 6: Final answer
    x = 28,313.99

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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.