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Finding the Fourth Proportional to 51,602.05, 77,239.05 and 36,839.80

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Solution

The fourth proportional to 51,602.05, 77,239.05 and 36,839.80 is: 55,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,602.05 : 77,239.05 = 36,839.80 : x
  2. Step 2: Convert to fraction form
    51,602.05/77,239.05 = 36,839.80/x
  3. Step 3: Cross multiply
    51,602.05x = 77,239.05 × 36,839.80
  4. Step 4: Simplify right side
    51,602.05x = 2,845,471,154.19
  5. Step 5: Solve for x
    x = 2,845,471,154.19/51,602.05
  6. Step 6: Final answer
    x = 55,142.60

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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.