Home / 56,003.57-77,284.62-30,509.88

Finding the Fourth Proportional to 56,003.57, 77,284.62 and 30,509.88

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Solution

The fourth proportional to 56,003.57, 77,284.62 and 30,509.88 is: 42,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,003.57 : 77,284.62 = 30,509.88 : x
  2. Step 2: Convert to fraction form
    56,003.57/77,284.62 = 30,509.88/x
  3. Step 3: Cross multiply
    56,003.57x = 77,284.62 × 30,509.88
  4. Step 4: Simplify right side
    56,003.57x = 2,357,944,747.07
  5. Step 5: Solve for x
    x = 2,357,944,747.07/56,003.57
  6. Step 6: Final answer
    x = 42,103.47

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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.