Home / 55,740.64-76,806.48-51,887.20

Finding the Fourth Proportional to 55,740.64, 76,806.48 and 51,887.20

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Solution

The fourth proportional to 55,740.64, 76,806.48 and 51,887.20 is: 71,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,740.64 : 76,806.48 = 51,887.20 : x
  2. Step 2: Convert to fraction form
    55,740.64/76,806.48 = 51,887.20/x
  3. Step 3: Cross multiply
    55,740.64x = 76,806.48 × 51,887.20
  4. Step 4: Simplify right side
    55,740.64x = 3,985,273,189.06
  5. Step 5: Solve for x
    x = 3,985,273,189.06/55,740.64
  6. Step 6: Final answer
    x = 71,496.72

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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.