Home / 56,554.20-78,043.50-31,403.70

Finding the Fourth Proportional to 56,554.20, 78,043.50 and 31,403.70

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Solution

The fourth proportional to 56,554.20, 78,043.50 and 31,403.70 is: 43,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,554.20 : 78,043.50 = 31,403.70 : x
  2. Step 2: Convert to fraction form
    56,554.20/78,043.50 = 31,403.70/x
  3. Step 3: Cross multiply
    56,554.20x = 78,043.50 × 31,403.70
  4. Step 4: Simplify right side
    56,554.20x = 2,450,854,660.95
  5. Step 5: Solve for x
    x = 2,450,854,660.95/56,554.20
  6. Step 6: Final answer
    x = 43,336.39

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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.