Home / 56,221.12-77,582.10-31,069

Finding the Fourth Proportional to 56,221.12, 77,582.10 and 31,069

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Solution

The fourth proportional to 56,221.12, 77,582.10 and 31,069 is: 42,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.12 : 77,582.10 = 31,069 : x
  2. Step 2: Convert to fraction form
    56,221.12/77,582.10 = 31,069/x
  3. Step 3: Cross multiply
    56,221.12x = 77,582.10 × 31,069
  4. Step 4: Simplify right side
    56,221.12x = 2,410,398,264.90
  5. Step 5: Solve for x
    x = 2,410,398,264.90/56,221.12
  6. Step 6: Final answer
    x = 42,873.54

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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.