Home / 67,210.20-92,744.64-38,917.68

Finding the Fourth Proportional to 67,210.20, 92,744.64 and 38,917.68

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Solution

The fourth proportional to 67,210.20, 92,744.64 and 38,917.68 is: 53,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,210.20 : 92,744.64 = 38,917.68 : x
  2. Step 2: Convert to fraction form
    67,210.20/92,744.64 = 38,917.68/x
  3. Step 3: Cross multiply
    67,210.20x = 92,744.64 × 38,917.68
  4. Step 4: Simplify right side
    67,210.20x = 3,609,406,221.24
  5. Step 5: Solve for x
    x = 3,609,406,221.24/67,210.20
  6. Step 6: Final answer
    x = 53,703.25

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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.