Home / 55,276.36-76,281.64-31,404.35

Finding the Fourth Proportional to 55,276.36, 76,281.64 and 31,404.35

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Solution

The fourth proportional to 55,276.36, 76,281.64 and 31,404.35 is: 43,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.36 : 76,281.64 = 31,404.35 : x
  2. Step 2: Convert to fraction form
    55,276.36/76,281.64 = 31,404.35/x
  3. Step 3: Cross multiply
    55,276.36x = 76,281.64 × 31,404.35
  4. Step 4: Simplify right side
    55,276.36x = 2,395,575,321.13
  5. Step 5: Solve for x
    x = 2,395,575,321.13/55,276.36
  6. Step 6: Final answer
    x = 43,338.15

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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.