Home / 55,647.21-76,748.47-48,918.57

Finding the Fourth Proportional to 55,647.21, 76,748.47 and 48,918.57

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Solution

The fourth proportional to 55,647.21, 76,748.47 and 48,918.57 is: 67,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,647.21 : 76,748.47 = 48,918.57 : x
  2. Step 2: Convert to fraction form
    55,647.21/76,748.47 = 48,918.57/x
  3. Step 3: Cross multiply
    55,647.21x = 76,748.47 × 48,918.57
  4. Step 4: Simplify right side
    55,647.21x = 3,754,425,402.09
  5. Step 5: Solve for x
    x = 3,754,425,402.09/55,647.21
  6. Step 6: Final answer
    x = 67,468.35

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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.