Home / 56,845.92-78,445.58-31,003.50

Finding the Fourth Proportional to 56,845.92, 78,445.58 and 31,003.50

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Solution

The fourth proportional to 56,845.92, 78,445.58 and 31,003.50 is: 42,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,845.92 : 78,445.58 = 31,003.50 : x
  2. Step 2: Convert to fraction form
    56,845.92/78,445.58 = 31,003.50/x
  3. Step 3: Cross multiply
    56,845.92x = 78,445.58 × 31,003.50
  4. Step 4: Simplify right side
    56,845.92x = 2,432,087,539.53
  5. Step 5: Solve for x
    x = 2,432,087,539.53/56,845.92
  6. Step 6: Final answer
    x = 42,783.85

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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.