Home / 61,758.05-85,158.47-40,208.06

Finding the Fourth Proportional to 61,758.05, 85,158.47 and 40,208.06

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Solution

The fourth proportional to 61,758.05, 85,158.47 and 40,208.06 is: 55,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,758.05 : 85,158.47 = 40,208.06 : x
  2. Step 2: Convert to fraction form
    61,758.05/85,158.47 = 40,208.06/x
  3. Step 3: Cross multiply
    61,758.05x = 85,158.47 × 40,208.06
  4. Step 4: Simplify right side
    61,758.05x = 3,424,057,184.68
  5. Step 5: Solve for x
    x = 3,424,057,184.68/61,758.05
  6. Step 6: Final answer
    x = 55,443.10

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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.