Home / 91,947.29-126,943.88-72,903.99

Finding the Fourth Proportional to 91,947.29, 126,943.88 and 72,903.99

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Solution

The fourth proportional to 91,947.29, 126,943.88 and 72,903.99 is: 100,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,947.29 : 126,943.88 = 72,903.99 : x
  2. Step 2: Convert to fraction form
    91,947.29/126,943.88 = 72,903.99/x
  3. Step 3: Cross multiply
    91,947.29x = 126,943.88 × 72,903.99
  4. Step 4: Simplify right side
    91,947.29x = 9,254,715,112.57
  5. Step 5: Solve for x
    x = 9,254,715,112.57/91,947.29
  6. Step 6: Final answer
    x = 100,652.39

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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.