Home / 91,119.39-136,688.81-38,534.19

Finding the Fourth Proportional to 91,119.39, 136,688.81 and 38,534.19

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Solution

The fourth proportional to 91,119.39, 136,688.81 and 38,534.19 is: 57,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,119.39 : 136,688.81 = 38,534.19 : x
  2. Step 2: Convert to fraction form
    91,119.39/136,688.81 = 38,534.19/x
  3. Step 3: Cross multiply
    91,119.39x = 136,688.81 × 38,534.19
  4. Step 4: Simplify right side
    91,119.39x = 5,267,192,382.74
  5. Step 5: Solve for x
    x = 5,267,192,382.74/91,119.39
  6. Step 6: Final answer
    x = 57,805.40

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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.