Home / 91,628.21-137,463.84-28,445.11

Finding the Fourth Proportional to 91,628.21, 137,463.84 and 28,445.11

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Solution

The fourth proportional to 91,628.21, 137,463.84 and 28,445.11 is: 42,674.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628.21 : 137,463.84 = 28,445.11 : x
  2. Step 2: Convert to fraction form
    91,628.21/137,463.84 = 28,445.11/x
  3. Step 3: Cross multiply
    91,628.21x = 137,463.84 × 28,445.11
  4. Step 4: Simplify right side
    91,628.21x = 3,910,173,706.16
  5. Step 5: Solve for x
    x = 3,910,173,706.16/91,628.21
  6. Step 6: Final answer
    x = 42,674.34

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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.