Home / 56,750.40-85,139.52-28,601.28

Finding the Fourth Proportional to 56,750.40, 85,139.52 and 28,601.28

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Solution

The fourth proportional to 56,750.40, 85,139.52 and 28,601.28 is: 42,908.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,750.40 : 85,139.52 = 28,601.28 : x
  2. Step 2: Convert to fraction form
    56,750.40/85,139.52 = 28,601.28/x
  3. Step 3: Cross multiply
    56,750.40x = 85,139.52 × 28,601.28
  4. Step 4: Simplify right side
    56,750.40x = 2,435,099,250.59
  5. Step 5: Solve for x
    x = 2,435,099,250.59/56,750.40
  6. Step 6: Final answer
    x = 42,908.94

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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.