Home / 56,920.12-78,554.46-31,429.01

Finding the Fourth Proportional to 56,920.12, 78,554.46 and 31,429.01

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Solution

The fourth proportional to 56,920.12, 78,554.46 and 31,429.01 is: 43,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.12 : 78,554.46 = 31,429.01 : x
  2. Step 2: Convert to fraction form
    56,920.12/78,554.46 = 31,429.01/x
  3. Step 3: Cross multiply
    56,920.12x = 78,554.46 × 31,429.01
  4. Step 4: Simplify right side
    56,920.12x = 2,468,888,908.88
  5. Step 5: Solve for x
    x = 2,468,888,908.88/56,920.12
  6. Step 6: Final answer
    x = 43,374.63

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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.