Home / 51,047.07-70,446.18-28,387.02

Finding the Fourth Proportional to 51,047.07, 70,446.18 and 28,387.02

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Solution

The fourth proportional to 51,047.07, 70,446.18 and 28,387.02 is: 39,174.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,047.07 : 70,446.18 = 28,387.02 : x
  2. Step 2: Convert to fraction form
    51,047.07/70,446.18 = 28,387.02/x
  3. Step 3: Cross multiply
    51,047.07x = 70,446.18 × 28,387.02
  4. Step 4: Simplify right side
    51,047.07x = 1,999,757,120.58
  5. Step 5: Solve for x
    x = 1,999,757,120.58/51,047.07
  6. Step 6: Final answer
    x = 39,174.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.