Home / 67,707.05-93,429.20-40,477.75

Finding the Fourth Proportional to 67,707.05, 93,429.20 and 40,477.75

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Solution

The fourth proportional to 67,707.05, 93,429.20 and 40,477.75 is: 55,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,707.05 : 93,429.20 = 40,477.75 : x
  2. Step 2: Convert to fraction form
    67,707.05/93,429.20 = 40,477.75/x
  3. Step 3: Cross multiply
    67,707.05x = 93,429.20 × 40,477.75
  4. Step 4: Simplify right side
    67,707.05x = 3,781,803,800.30
  5. Step 5: Solve for x
    x = 3,781,803,800.30/67,707.05
  6. Step 6: Final answer
    x = 55,855.40

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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.