Home / 56,147.14-77,390.72-39,799.82

Finding the Fourth Proportional to 56,147.14, 77,390.72 and 39,799.82

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Solution

The fourth proportional to 56,147.14, 77,390.72 and 39,799.82 is: 54,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,147.14 : 77,390.72 = 39,799.82 : x
  2. Step 2: Convert to fraction form
    56,147.14/77,390.72 = 39,799.82/x
  3. Step 3: Cross multiply
    56,147.14x = 77,390.72 × 39,799.82
  4. Step 4: Simplify right side
    56,147.14x = 3,080,136,869.40
  5. Step 5: Solve for x
    x = 3,080,136,869.40/56,147.14
  6. Step 6: Final answer
    x = 54,858.30

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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.