Home / 56,215.42-77,582.19-31,069.78

Finding the Fourth Proportional to 56,215.42, 77,582.19 and 31,069.78

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Solution

The fourth proportional to 56,215.42, 77,582.19 and 31,069.78 is: 42,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,215.42 : 77,582.19 = 31,069.78 : x
  2. Step 2: Convert to fraction form
    56,215.42/77,582.19 = 31,069.78/x
  3. Step 3: Cross multiply
    56,215.42x = 77,582.19 × 31,069.78
  4. Step 4: Simplify right side
    56,215.42x = 2,410,461,575.22
  5. Step 5: Solve for x
    x = 2,410,461,575.22/56,215.42
  6. Step 6: Final answer
    x = 42,879.01

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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.