Home / 56,221.24-77,580.66-31,070.68

Finding the Fourth Proportional to 56,221.24, 77,580.66 and 31,070.68

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Solution

The fourth proportional to 56,221.24, 77,580.66 and 31,070.68 is: 42,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.24 : 77,580.66 = 31,070.68 : x
  2. Step 2: Convert to fraction form
    56,221.24/77,580.66 = 31,070.68/x
  3. Step 3: Cross multiply
    56,221.24x = 77,580.66 × 31,070.68
  4. Step 4: Simplify right side
    56,221.24x = 2,410,483,861.05
  5. Step 5: Solve for x
    x = 2,410,483,861.05/56,221.24
  6. Step 6: Final answer
    x = 42,874.97

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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.