Home / 67,305.40-92,880.18-39,013.72

Finding the Fourth Proportional to 67,305.40, 92,880.18 and 39,013.72

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Solution

The fourth proportional to 67,305.40, 92,880.18 and 39,013.72 is: 53,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,305.40 : 92,880.18 = 39,013.72 : x
  2. Step 2: Convert to fraction form
    67,305.40/92,880.18 = 39,013.72/x
  3. Step 3: Cross multiply
    67,305.40x = 92,880.18 × 39,013.72
  4. Step 4: Simplify right side
    67,305.40x = 3,623,601,336.07
  5. Step 5: Solve for x
    x = 3,623,601,336.07/67,305.40
  6. Step 6: Final answer
    x = 53,838.20

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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.