Home / 53,383.10-80,065.13-13,938.12

Finding the Fourth Proportional to 53,383.10, 80,065.13 and 13,938.12

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Solution

The fourth proportional to 53,383.10, 80,065.13 and 13,938.12 is: 20,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,383.10 : 80,065.13 = 13,938.12 : x
  2. Step 2: Convert to fraction form
    53,383.10/80,065.13 = 13,938.12/x
  3. Step 3: Cross multiply
    53,383.10x = 80,065.13 × 13,938.12
  4. Step 4: Simplify right side
    53,383.10x = 1,115,957,320.07
  5. Step 5: Solve for x
    x = 1,115,957,320.07/53,383.10
  6. Step 6: Final answer
    x = 20,904.70

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1.5x scale

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.