Home / 56,900.60-78,524.15-31,407.35

Finding the Fourth Proportional to 56,900.60, 78,524.15 and 31,407.35

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Solution

The fourth proportional to 56,900.60, 78,524.15 and 31,407.35 is: 43,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,900.60 : 78,524.15 = 31,407.35 : x
  2. Step 2: Convert to fraction form
    56,900.60/78,524.15 = 31,407.35/x
  3. Step 3: Cross multiply
    56,900.60x = 78,524.15 × 31,407.35
  4. Step 4: Simplify right side
    56,900.60x = 2,466,234,912.85
  5. Step 5: Solve for x
    x = 2,466,234,912.85/56,900.60
  6. Step 6: Final answer
    x = 43,342.87

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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.