Home / 55,276.88-76,283.88-31,403.12

Finding the Fourth Proportional to 55,276.88, 76,283.88 and 31,403.12

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Solution

The fourth proportional to 55,276.88, 76,283.88 and 31,403.12 is: 43,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.88 : 76,283.88 = 31,403.12 : x
  2. Step 2: Convert to fraction form
    55,276.88/76,283.88 = 31,403.12/x
  3. Step 3: Cross multiply
    55,276.88x = 76,283.88 × 31,403.12
  4. Step 4: Simplify right side
    55,276.88x = 2,395,551,837.71
  5. Step 5: Solve for x
    x = 2,395,551,837.71/55,276.88
  6. Step 6: Final answer
    x = 43,337.32

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1.5x scale

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.