Home / 56,006.75-77,289.32-30,856.79

Finding the Fourth Proportional to 56,006.75, 77,289.32 and 30,856.79

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Solution

The fourth proportional to 56,006.75, 77,289.32 and 30,856.79 is: 42,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,006.75 : 77,289.32 = 30,856.79 : x
  2. Step 2: Convert to fraction form
    56,006.75/77,289.32 = 30,856.79/x
  3. Step 3: Cross multiply
    56,006.75x = 77,289.32 × 30,856.79
  4. Step 4: Simplify right side
    56,006.75x = 2,384,900,162.20
  5. Step 5: Solve for x
    x = 2,384,900,162.20/56,006.75
  6. Step 6: Final answer
    x = 42,582.37

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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.