Home / 83,570.85-115,327.10-45,330.30

Finding the Fourth Proportional to 83,570.85, 115,327.10 and 45,330.30

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Solution

The fourth proportional to 83,570.85, 115,327.10 and 45,330.30 is: 62,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,570.85 : 115,327.10 = 45,330.30 : x
  2. Step 2: Convert to fraction form
    83,570.85/115,327.10 = 45,330.30/x
  3. Step 3: Cross multiply
    83,570.85x = 115,327.10 × 45,330.30
  4. Step 4: Simplify right side
    83,570.85x = 5,227,811,814.48
  5. Step 5: Solve for x
    x = 5,227,811,814.48/83,570.85
  6. Step 6: Final answer
    x = 62,555.45

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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.