Home / 67,148-92,666.28-36,931.76

Finding the Fourth Proportional to 67,148, 92,666.28 and 36,931.76

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Solution

The fourth proportional to 67,148, 92,666.28 and 36,931.76 is: 50,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,148 : 92,666.28 = 36,931.76 : x
  2. Step 2: Convert to fraction form
    67,148/92,666.28 = 36,931.76/x
  3. Step 3: Cross multiply
    67,148x = 92,666.28 × 36,931.76
  4. Step 4: Simplify right side
    67,148x = 3,422,328,813.05
  5. Step 5: Solve for x
    x = 3,422,328,813.05/67,148
  6. Step 6: Final answer
    x = 50,966.95

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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.