Home / 56,769.54-78,340.95-31,618.50

Finding the Fourth Proportional to 56,769.54, 78,340.95 and 31,618.50

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Solution

The fourth proportional to 56,769.54, 78,340.95 and 31,618.50 is: 43,632.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,769.54 : 78,340.95 = 31,618.50 : x
  2. Step 2: Convert to fraction form
    56,769.54/78,340.95 = 31,618.50/x
  3. Step 3: Cross multiply
    56,769.54x = 78,340.95 × 31,618.50
  4. Step 4: Simplify right side
    56,769.54x = 2,477,023,327.58
  5. Step 5: Solve for x
    x = 2,477,023,327.58/56,769.54
  6. Step 6: Final answer
    x = 43,632.96

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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.