Home / 91,768.20-137,652.30-56,776.20

Finding the Fourth Proportional to 91,768.20, 137,652.30 and 56,776.20

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Solution

The fourth proportional to 91,768.20, 137,652.30 and 56,776.20 is: 85,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,768.20 : 137,652.30 = 56,776.20 : x
  2. Step 2: Convert to fraction form
    91,768.20/137,652.30 = 56,776.20/x
  3. Step 3: Cross multiply
    91,768.20x = 137,652.30 × 56,776.20
  4. Step 4: Simplify right side
    91,768.20x = 7,815,374,515.26
  5. Step 5: Solve for x
    x = 7,815,374,515.26/91,768.20
  6. Step 6: Final answer
    x = 85,164.30

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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.