Home / 56,187.87-77,535.79-30,689.07

Finding the Fourth Proportional to 56,187.87, 77,535.79 and 30,689.07

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Solution

The fourth proportional to 56,187.87, 77,535.79 and 30,689.07 is: 42,349.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,187.87 : 77,535.79 = 30,689.07 : x
  2. Step 2: Convert to fraction form
    56,187.87/77,535.79 = 30,689.07/x
  3. Step 3: Cross multiply
    56,187.87x = 77,535.79 × 30,689.07
  4. Step 4: Simplify right side
    56,187.87x = 2,379,501,286.82
  5. Step 5: Solve for x
    x = 2,379,501,286.82/56,187.87
  6. Step 6: Final answer
    x = 42,349.02

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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.