Home / 91,938.28-126,875.28-53,724.92

Finding the Fourth Proportional to 91,938.28, 126,875.28 and 53,724.92

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Solution

The fourth proportional to 91,938.28, 126,875.28 and 53,724.92 is: 74,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.28 : 126,875.28 = 53,724.92 : x
  2. Step 2: Convert to fraction form
    91,938.28/126,875.28 = 53,724.92/x
  3. Step 3: Cross multiply
    91,938.28x = 126,875.28 × 53,724.92
  4. Step 4: Simplify right side
    91,938.28x = 6,816,364,267.98
  5. Step 5: Solve for x
    x = 6,816,364,267.98/91,938.28
  6. Step 6: Final answer
    x = 74,140.65

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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.