Home / 53,303.17-79,945.13-13,857.86

Finding the Fourth Proportional to 53,303.17, 79,945.13 and 13,857.86

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Solution

The fourth proportional to 53,303.17, 79,945.13 and 13,857.86 is: 20,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,303.17 : 79,945.13 = 13,857.86 : x
  2. Step 2: Convert to fraction form
    53,303.17/79,945.13 = 13,857.86/x
  3. Step 3: Cross multiply
    53,303.17x = 79,945.13 × 13,857.86
  4. Step 4: Simplify right side
    53,303.17x = 1,107,868,419.22
  5. Step 5: Solve for x
    x = 1,107,868,419.22/53,303.17
  6. Step 6: Final answer
    x = 20,784.29

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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.