Home / 91,117.81-125,674.69-66,911.16

Finding the Fourth Proportional to 91,117.81, 125,674.69 and 66,911.16

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Solution

The fourth proportional to 91,117.81, 125,674.69 and 66,911.16 is: 92,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,117.81 : 125,674.69 = 66,911.16 : x
  2. Step 2: Convert to fraction form
    91,117.81/125,674.69 = 66,911.16/x
  3. Step 3: Cross multiply
    91,117.81x = 125,674.69 × 66,911.16
  4. Step 4: Simplify right side
    91,117.81x = 8,409,038,955.98
  5. Step 5: Solve for x
    x = 8,409,038,955.98/91,117.81
  6. Step 6: Final answer
    x = 92,287.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.