Home / 51,465.72-71,012.60-28,805.70

Finding the Fourth Proportional to 51,465.72, 71,012.60 and 28,805.70

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Solution

The fourth proportional to 51,465.72, 71,012.60 and 28,805.70 is: 39,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,465.72 : 71,012.60 = 28,805.70 : x
  2. Step 2: Convert to fraction form
    51,465.72/71,012.60 = 28,805.70/x
  3. Step 3: Cross multiply
    51,465.72x = 71,012.60 × 28,805.70
  4. Step 4: Simplify right side
    51,465.72x = 2,045,567,651.82
  5. Step 5: Solve for x
    x = 2,045,567,651.82/51,465.72
  6. Step 6: Final answer
    x = 39,746.22

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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.