Home / 55,833.40-83,750.10-20,765.80

Finding the Fourth Proportional to 55,833.40, 83,750.10 and 20,765.80

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Solution

The fourth proportional to 55,833.40, 83,750.10 and 20,765.80 is: 31,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,833.40 : 83,750.10 = 20,765.80 : x
  2. Step 2: Convert to fraction form
    55,833.40/83,750.10 = 20,765.80/x
  3. Step 3: Cross multiply
    55,833.40x = 83,750.10 × 20,765.80
  4. Step 4: Simplify right side
    55,833.40x = 1,739,137,826.58
  5. Step 5: Solve for x
    x = 1,739,137,826.58/55,833.40
  6. Step 6: Final answer
    x = 31,148.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.