Home / 58,221.53-87,350.74-20,780.77

Finding the Fourth Proportional to 58,221.53, 87,350.74 and 20,780.77

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Solution

The fourth proportional to 58,221.53, 87,350.74 and 20,780.77 is: 31,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.53 : 87,350.74 = 20,780.77 : x
  2. Step 2: Convert to fraction form
    58,221.53/87,350.74 = 20,780.77/x
  3. Step 3: Cross multiply
    58,221.53x = 87,350.74 × 20,780.77
  4. Step 4: Simplify right side
    58,221.53x = 1,815,215,868.40
  5. Step 5: Solve for x
    x = 1,815,215,868.40/58,221.53
  6. Step 6: Final answer
    x = 31,177.74

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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.