Home / 83,543.80-115,290.58-45,818.28

Finding the Fourth Proportional to 83,543.80, 115,290.58 and 45,818.28

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Solution

The fourth proportional to 83,543.80, 115,290.58 and 45,818.28 is: 63,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,543.80 : 115,290.58 = 45,818.28 : x
  2. Step 2: Convert to fraction form
    83,543.80/115,290.58 = 45,818.28/x
  3. Step 3: Cross multiply
    83,543.80x = 115,290.58 × 45,818.28
  4. Step 4: Simplify right side
    83,543.80x = 5,282,416,075.80
  5. Step 5: Solve for x
    x = 5,282,416,075.80/83,543.80
  6. Step 6: Final answer
    x = 63,229.30

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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.