Home / 90,810.48-125,298.72-53,067.36

Finding the Fourth Proportional to 90,810.48, 125,298.72 and 53,067.36

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Solution

The fourth proportional to 90,810.48, 125,298.72 and 53,067.36 is: 73,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,810.48 : 125,298.72 = 53,067.36 : x
  2. Step 2: Convert to fraction form
    90,810.48/125,298.72 = 53,067.36/x
  3. Step 3: Cross multiply
    90,810.48x = 125,298.72 × 53,067.36
  4. Step 4: Simplify right side
    90,810.48x = 6,649,272,281.78
  5. Step 5: Solve for x
    x = 6,649,272,281.78/90,810.48
  6. Step 6: Final answer
    x = 73,221.42

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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.