Home / 53,302.17-79,943.63-13,856.86

Finding the Fourth Proportional to 53,302.17, 79,943.63 and 13,856.86

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Solution

The fourth proportional to 53,302.17, 79,943.63 and 13,856.86 is: 20,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,302.17 : 79,943.63 = 13,856.86 : x
  2. Step 2: Convert to fraction form
    53,302.17/79,943.63 = 13,856.86/x
  3. Step 3: Cross multiply
    53,302.17x = 79,943.63 × 13,856.86
  4. Step 4: Simplify right side
    53,302.17x = 1,107,767,289.08
  5. Step 5: Solve for x
    x = 1,107,767,289.08/53,302.17
  6. Step 6: Final answer
    x = 20,782.78

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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.