Home / 51,187.26-70,638.70-29,689.74

Finding the Fourth Proportional to 51,187.26, 70,638.70 and 29,689.74

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Solution

The fourth proportional to 51,187.26, 70,638.70 and 29,689.74 is: 40,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.26 : 70,638.70 = 29,689.74 : x
  2. Step 2: Convert to fraction form
    51,187.26/70,638.70 = 29,689.74/x
  3. Step 3: Cross multiply
    51,187.26x = 70,638.70 × 29,689.74
  4. Step 4: Simplify right side
    51,187.26x = 2,097,244,618.38
  5. Step 5: Solve for x
    x = 2,097,244,618.38/51,187.26
  6. Step 6: Final answer
    x = 40,972.01

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1.5x scale

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.