Home / 85,034.59-117,509.57-63,776.95

Finding the Fourth Proportional to 85,034.59, 117,509.57 and 63,776.95

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Solution

The fourth proportional to 85,034.59, 117,509.57 and 63,776.95 is: 88,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,034.59 : 117,509.57 = 63,776.95 : x
  2. Step 2: Convert to fraction form
    85,034.59/117,509.57 = 63,776.95/x
  3. Step 3: Cross multiply
    85,034.59x = 117,509.57 × 63,776.95
  4. Step 4: Simplify right side
    85,034.59x = 7,494,401,970.41
  5. Step 5: Solve for x
    x = 7,494,401,970.41/85,034.59
  6. Step 6: Final answer
    x = 88,133.57

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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.