Home / 56,972.58-85,442.40-21,903.90

Finding the Fourth Proportional to 56,972.58, 85,442.40 and 21,903.90

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Solution

The fourth proportional to 56,972.58, 85,442.40 and 21,903.90 is: 32,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,972.58 : 85,442.40 = 21,903.90 : x
  2. Step 2: Convert to fraction form
    56,972.58/85,442.40 = 21,903.90/x
  3. Step 3: Cross multiply
    56,972.58x = 85,442.40 × 21,903.90
  4. Step 4: Simplify right side
    56,972.58x = 1,871,521,785.36
  5. Step 5: Solve for x
    x = 1,871,521,785.36/56,972.58
  6. Step 6: Final answer
    x = 32,849.52

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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.