Home / 67,931.62-93,745.64-39,631.84

Finding the Fourth Proportional to 67,931.62, 93,745.64 and 39,631.84

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Solution

The fourth proportional to 67,931.62, 93,745.64 and 39,631.84 is: 54,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,931.62 : 93,745.64 = 39,631.84 : x
  2. Step 2: Convert to fraction form
    67,931.62/93,745.64 = 39,631.84/x
  3. Step 3: Cross multiply
    67,931.62x = 93,745.64 × 39,631.84
  4. Step 4: Simplify right side
    67,931.62x = 3,715,312,205.18
  5. Step 5: Solve for x
    x = 3,715,312,205.18/67,931.62
  6. Step 6: Final answer
    x = 54,691.94

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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.