Home / 56,473.23-77,934.10-30,980.90

Finding the Fourth Proportional to 56,473.23, 77,934.10 and 30,980.90

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Solution

The fourth proportional to 56,473.23, 77,934.10 and 30,980.90 is: 42,754.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,473.23 : 77,934.10 = 30,980.90 : x
  2. Step 2: Convert to fraction form
    56,473.23/77,934.10 = 30,980.90/x
  3. Step 3: Cross multiply
    56,473.23x = 77,934.10 × 30,980.90
  4. Step 4: Simplify right side
    56,473.23x = 2,414,468,676.07
  5. Step 5: Solve for x
    x = 2,414,468,676.07/56,473.23
  6. Step 6: Final answer
    x = 42,754.22

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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.