Home / 55,926.55-77,180.06-30,434.30

Finding the Fourth Proportional to 55,926.55, 77,180.06 and 30,434.30

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Solution

The fourth proportional to 55,926.55, 77,180.06 and 30,434.30 is: 42,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,926.55 : 77,180.06 = 30,434.30 : x
  2. Step 2: Convert to fraction form
    55,926.55/77,180.06 = 30,434.30/x
  3. Step 3: Cross multiply
    55,926.55x = 77,180.06 × 30,434.30
  4. Step 4: Simplify right side
    55,926.55x = 2,348,920,561.99
  5. Step 5: Solve for x
    x = 2,348,920,561.99/55,926.55
  6. Step 6: Final answer
    x = 42,000.10

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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.