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Finding the Fourth Proportional to 91,235.80, 125,898.15 and 50,947.17

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Solution

The fourth proportional to 91,235.80, 125,898.15 and 50,947.17 is: 70,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,235.80 : 125,898.15 = 50,947.17 : x
  2. Step 2: Convert to fraction form
    91,235.80/125,898.15 = 50,947.17/x
  3. Step 3: Cross multiply
    91,235.80x = 125,898.15 × 50,947.17
  4. Step 4: Simplify right side
    91,235.80x = 6,414,154,450.74
  5. Step 5: Solve for x
    x = 6,414,154,450.74/91,235.80
  6. Step 6: Final answer
    x = 70,303.04

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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.