Home / 91,123.70-136,685.55-49,133.30

Finding the Fourth Proportional to 91,123.70, 136,685.55 and 49,133.30

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Solution

The fourth proportional to 91,123.70, 136,685.55 and 49,133.30 is: 73,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,123.70 : 136,685.55 = 49,133.30 : x
  2. Step 2: Convert to fraction form
    91,123.70/136,685.55 = 49,133.30/x
  3. Step 3: Cross multiply
    91,123.70x = 136,685.55 × 49,133.30
  4. Step 4: Simplify right side
    91,123.70x = 6,715,812,133.82
  5. Step 5: Solve for x
    x = 6,715,812,133.82/91,123.70
  6. Step 6: Final answer
    x = 73,699.95

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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.