Home / 53,081.34-79,639.29-25,381.50

Finding the Fourth Proportional to 53,081.34, 79,639.29 and 25,381.50

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Solution

The fourth proportional to 53,081.34, 79,639.29 and 25,381.50 is: 38,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,081.34 : 79,639.29 = 25,381.50 : x
  2. Step 2: Convert to fraction form
    53,081.34/79,639.29 = 25,381.50/x
  3. Step 3: Cross multiply
    53,081.34x = 79,639.29 × 25,381.50
  4. Step 4: Simplify right side
    53,081.34x = 2,021,364,639.14
  5. Step 5: Solve for x
    x = 2,021,364,639.14/53,081.34
  6. Step 6: Final answer
    x = 38,080.51

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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.