Home / 62,690.57-86,438.91-51,318.17

Finding the Fourth Proportional to 62,690.57, 86,438.91 and 51,318.17

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Solution

The fourth proportional to 62,690.57, 86,438.91 and 51,318.17 is: 70,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,690.57 : 86,438.91 = 51,318.17 : x
  2. Step 2: Convert to fraction form
    62,690.57/86,438.91 = 51,318.17/x
  3. Step 3: Cross multiply
    62,690.57x = 86,438.91 × 51,318.17
  4. Step 4: Simplify right side
    62,690.57x = 4,435,886,677.99
  5. Step 5: Solve for x
    x = 4,435,886,677.99/62,690.57
  6. Step 6: Final answer
    x = 70,758.44

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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.