Home / 84,293.15-126,458.55-31,703.09

Finding the Fourth Proportional to 84,293.15, 126,458.55 and 31,703.09

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Solution

The fourth proportional to 84,293.15, 126,458.55 and 31,703.09 is: 47,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,293.15 : 126,458.55 = 31,703.09 : x
  2. Step 2: Convert to fraction form
    84,293.15/126,458.55 = 31,703.09/x
  3. Step 3: Cross multiply
    84,293.15x = 126,458.55 × 31,703.09
  4. Step 4: Simplify right side
    84,293.15x = 4,009,126,159.63
  5. Step 5: Solve for x
    x = 4,009,126,159.63/84,293.15
  6. Step 6: Final answer
    x = 47,561.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.