Home / 91,975.50-137,996.55-45,261.18

Finding the Fourth Proportional to 91,975.50, 137,996.55 and 45,261.18

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Solution

The fourth proportional to 91,975.50, 137,996.55 and 45,261.18 is: 67,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,975.50 : 137,996.55 = 45,261.18 : x
  2. Step 2: Convert to fraction form
    91,975.50/137,996.55 = 45,261.18/x
  3. Step 3: Cross multiply
    91,975.50x = 137,996.55 × 45,261.18
  4. Step 4: Simplify right side
    91,975.50x = 6,245,886,688.93
  5. Step 5: Solve for x
    x = 6,245,886,688.93/91,975.50
  6. Step 6: Final answer
    x = 67,908.16

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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.