Home / 67,355.10-92,956.25-38,678.51

Finding the Fourth Proportional to 67,355.10, 92,956.25 and 38,678.51

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Solution

The fourth proportional to 67,355.10, 92,956.25 and 38,678.51 is: 53,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,355.10 : 92,956.25 = 38,678.51 : x
  2. Step 2: Convert to fraction form
    67,355.10/92,956.25 = 38,678.51/x
  3. Step 3: Cross multiply
    67,355.10x = 92,956.25 × 38,678.51
  4. Step 4: Simplify right side
    67,355.10x = 3,595,409,574.27
  5. Step 5: Solve for x
    x = 3,595,409,574.27/67,355.10
  6. Step 6: Final answer
    x = 53,379.92

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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.