Home / 83,400.38-115,092.92-45,674.63

Finding the Fourth Proportional to 83,400.38, 115,092.92 and 45,674.63

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Solution

The fourth proportional to 83,400.38, 115,092.92 and 45,674.63 is: 63,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,400.38 : 115,092.92 = 45,674.63 : x
  2. Step 2: Convert to fraction form
    83,400.38/115,092.92 = 45,674.63/x
  3. Step 3: Cross multiply
    83,400.38x = 115,092.92 × 45,674.63
  4. Step 4: Simplify right side
    83,400.38x = 5,256,826,075.34
  5. Step 5: Solve for x
    x = 5,256,826,075.34/83,400.38
  6. Step 6: Final answer
    x = 63,031.20

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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.