Home / 56,901.85-85,289.13-21,328.93

Finding the Fourth Proportional to 56,901.85, 85,289.13 and 21,328.93

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Solution

The fourth proportional to 56,901.85, 85,289.13 and 21,328.93 is: 31,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.85 : 85,289.13 = 21,328.93 : x
  2. Step 2: Convert to fraction form
    56,901.85/85,289.13 = 21,328.93/x
  3. Step 3: Cross multiply
    56,901.85x = 85,289.13 × 21,328.93
  4. Step 4: Simplify right side
    56,901.85x = 1,819,125,883.53
  5. Step 5: Solve for x
    x = 1,819,125,883.53/56,901.85
  6. Step 6: Final answer
    x = 31,969.54

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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.