Home / 91,780.21-137,670.32-32,618.21

Finding the Fourth Proportional to 91,780.21, 137,670.32 and 32,618.21

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Solution

The fourth proportional to 91,780.21, 137,670.32 and 32,618.21 is: 48,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,780.21 : 137,670.32 = 32,618.21 : x
  2. Step 2: Convert to fraction form
    91,780.21/137,670.32 = 32,618.21/x
  3. Step 3: Cross multiply
    91,780.21x = 137,670.32 × 32,618.21
  4. Step 4: Simplify right side
    91,780.21x = 4,490,559,392.64
  5. Step 5: Solve for x
    x = 4,490,559,392.64/91,780.21
  6. Step 6: Final answer
    x = 48,927.32

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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.