Home / 56,387.85-77,814.37-30,894.01

Finding the Fourth Proportional to 56,387.85, 77,814.37 and 30,894.01

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Solution

The fourth proportional to 56,387.85, 77,814.37 and 30,894.01 is: 42,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,387.85 : 77,814.37 = 30,894.01 : x
  2. Step 2: Convert to fraction form
    56,387.85/77,814.37 = 30,894.01/x
  3. Step 3: Cross multiply
    56,387.85x = 77,814.37 × 30,894.01
  4. Step 4: Simplify right side
    56,387.85x = 2,403,997,924.92
  5. Step 5: Solve for x
    x = 2,403,997,924.92/56,387.85
  6. Step 6: Final answer
    x = 42,633.26

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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.