Home / 91,729.40-137,594.10-63,735.80

Finding the Fourth Proportional to 91,729.40, 137,594.10 and 63,735.80

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Solution

The fourth proportional to 91,729.40, 137,594.10 and 63,735.80 is: 95,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,729.40 : 137,594.10 = 63,735.80 : x
  2. Step 2: Convert to fraction form
    91,729.40/137,594.10 = 63,735.80/x
  3. Step 3: Cross multiply
    91,729.40x = 137,594.10 × 63,735.80
  4. Step 4: Simplify right side
    91,729.40x = 8,769,670,038.78
  5. Step 5: Solve for x
    x = 8,769,670,038.78/91,729.40
  6. Step 6: Final answer
    x = 95,603.70

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1.5x scale

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.