Home / 51,309.10-70,805.88-28,648.47

Finding the Fourth Proportional to 51,309.10, 70,805.88 and 28,648.47

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Solution

The fourth proportional to 51,309.10, 70,805.88 and 28,648.47 is: 39,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,309.10 : 70,805.88 = 28,648.47 : x
  2. Step 2: Convert to fraction form
    51,309.10/70,805.88 = 28,648.47/x
  3. Step 3: Cross multiply
    51,309.10x = 70,805.88 × 28,648.47
  4. Step 4: Simplify right side
    51,309.10x = 2,028,480,234.40
  5. Step 5: Solve for x
    x = 2,028,480,234.40/51,309.10
  6. Step 6: Final answer
    x = 39,534.52

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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.