Home / 81,556.12-112,575.45-51,392.26

Finding the Fourth Proportional to 81,556.12, 112,575.45 and 51,392.26

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Solution

The fourth proportional to 81,556.12, 112,575.45 and 51,392.26 is: 70,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.12 : 112,575.45 = 51,392.26 : x
  2. Step 2: Convert to fraction form
    81,556.12/112,575.45 = 51,392.26/x
  3. Step 3: Cross multiply
    81,556.12x = 112,575.45 × 51,392.26
  4. Step 4: Simplify right side
    81,556.12x = 5,785,506,796.02
  5. Step 5: Solve for x
    x = 5,785,506,796.02/81,556.12
  6. Step 6: Final answer
    x = 70,938.97

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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.