Home / 61,844.20-85,405.62-42,772.84

Finding the Fourth Proportional to 61,844.20, 85,405.62 and 42,772.84

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Solution

The fourth proportional to 61,844.20, 85,405.62 and 42,772.84 is: 59,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,844.20 : 85,405.62 = 42,772.84 : x
  2. Step 2: Convert to fraction form
    61,844.20/85,405.62 = 42,772.84/x
  3. Step 3: Cross multiply
    61,844.20x = 85,405.62 × 42,772.84
  4. Step 4: Simplify right side
    61,844.20x = 3,653,040,919.36
  5. Step 5: Solve for x
    x = 3,653,040,919.36/61,844.20
  6. Step 6: Final answer
    x = 59,068.45

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1.5x scale

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.