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Finding the Fourth Proportional to 91,873.70, 137,737.65 and 50,320.70

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Solution

The fourth proportional to 91,873.70, 137,737.65 and 50,320.70 is: 75,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,873.70 : 137,737.65 = 50,320.70 : x
  2. Step 2: Convert to fraction form
    91,873.70/137,737.65 = 50,320.70/x
  3. Step 3: Cross multiply
    91,873.70x = 137,737.65 × 50,320.70
  4. Step 4: Simplify right side
    91,873.70x = 6,931,054,964.36
  5. Step 5: Solve for x
    x = 6,931,054,964.36/91,873.70
  6. Step 6: Final answer
    x = 75,441.12

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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.