Home / 84,271.57-126,390.29-30,945.24

Finding the Fourth Proportional to 84,271.57, 126,390.29 and 30,945.24

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Solution

The fourth proportional to 84,271.57, 126,390.29 and 30,945.24 is: 46,411.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,271.57 : 126,390.29 = 30,945.24 : x
  2. Step 2: Convert to fraction form
    84,271.57/126,390.29 = 30,945.24/x
  3. Step 3: Cross multiply
    84,271.57x = 126,390.29 × 30,945.24
  4. Step 4: Simplify right side
    84,271.57x = 3,911,177,877.06
  5. Step 5: Solve for x
    x = 3,911,177,877.06/84,271.57
  6. Step 6: Final answer
    x = 46,411.59

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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.