Home / 51,001.35-70,378.50-28,338.63

Finding the Fourth Proportional to 51,001.35, 70,378.50 and 28,338.63

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Solution

The fourth proportional to 51,001.35, 70,378.50 and 28,338.63 is: 39,105.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,001.35 : 70,378.50 = 28,338.63 : x
  2. Step 2: Convert to fraction form
    51,001.35/70,378.50 = 28,338.63/x
  3. Step 3: Cross multiply
    51,001.35x = 70,378.50 × 28,338.63
  4. Step 4: Simplify right side
    51,001.35x = 1,994,430,271.46
  5. Step 5: Solve for x
    x = 1,994,430,271.46/51,001.35
  6. Step 6: Final answer
    x = 39,105.44

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Double scale
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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.