Home / 56,587.20-78,091.68-31,093.32

Finding the Fourth Proportional to 56,587.20, 78,091.68 and 31,093.32

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Solution

The fourth proportional to 56,587.20, 78,091.68 and 31,093.32 is: 42,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,587.20 : 78,091.68 = 31,093.32 : x
  2. Step 2: Convert to fraction form
    56,587.20/78,091.68 = 31,093.32/x
  3. Step 3: Cross multiply
    56,587.20x = 78,091.68 × 31,093.32
  4. Step 4: Simplify right side
    56,587.20x = 2,428,129,595.58
  5. Step 5: Solve for x
    x = 2,428,129,595.58/56,587.20
  6. Step 6: Final answer
    x = 42,909.52

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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.