Home / 56,220.24-77,579.28-31,069.68

Finding the Fourth Proportional to 56,220.24, 77,579.28 and 31,069.68

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Solution

The fourth proportional to 56,220.24, 77,579.28 and 31,069.68 is: 42,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,220.24 : 77,579.28 = 31,069.68 : x
  2. Step 2: Convert to fraction form
    56,220.24/77,579.28 = 31,069.68/x
  3. Step 3: Cross multiply
    56,220.24x = 77,579.28 × 31,069.68
  4. Step 4: Simplify right side
    56,220.24x = 2,410,363,404.23
  5. Step 5: Solve for x
    x = 2,410,363,404.23/56,220.24
  6. Step 6: Final answer
    x = 42,873.59

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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.