Home / 67,420.81-93,434.01-66,469.46

Finding the Fourth Proportional to 67,420.81, 93,434.01 and 66,469.46

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Solution

The fourth proportional to 67,420.81, 93,434.01 and 66,469.46 is: 92,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.81 : 93,434.01 = 66,469.46 : x
  2. Step 2: Convert to fraction form
    67,420.81/93,434.01 = 66,469.46/x
  3. Step 3: Cross multiply
    67,420.81x = 93,434.01 × 66,469.46
  4. Step 4: Simplify right side
    67,420.81x = 6,210,508,423.92
  5. Step 5: Solve for x
    x = 6,210,508,423.92/67,420.81
  6. Step 6: Final answer
    x = 92,115.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.