Home / 56,902.45-78,525.60-31,409.02

Finding the Fourth Proportional to 56,902.45, 78,525.60 and 31,409.02

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Solution

The fourth proportional to 56,902.45, 78,525.60 and 31,409.02 is: 43,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,902.45 : 78,525.60 = 31,409.02 : x
  2. Step 2: Convert to fraction form
    56,902.45/78,525.60 = 31,409.02/x
  3. Step 3: Cross multiply
    56,902.45x = 78,525.60 × 31,409.02
  4. Step 4: Simplify right side
    56,902.45x = 2,466,411,856.25
  5. Step 5: Solve for x
    x = 2,466,411,856.25/56,902.45
  6. Step 6: Final answer
    x = 43,344.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.