Home / 51,905.20-77,857.80-35,316.40

Finding the Fourth Proportional to 51,905.20, 77,857.80 and 35,316.40

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Solution

The fourth proportional to 51,905.20, 77,857.80 and 35,316.40 is: 52,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,905.20 : 77,857.80 = 35,316.40 : x
  2. Step 2: Convert to fraction form
    51,905.20/77,857.80 = 35,316.40/x
  3. Step 3: Cross multiply
    51,905.20x = 77,857.80 × 35,316.40
  4. Step 4: Simplify right side
    51,905.20x = 2,749,657,207.92
  5. Step 5: Solve for x
    x = 2,749,657,207.92/51,905.20
  6. Step 6: Final answer
    x = 52,974.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.